Add support for alternative desktop entries names in profiles

For example, Chromium uses either `chromium-browser.desktop` or
`chromium.desktop` depending on a distro.

Add support for defining desktop entry name as a list. When some
code wants to get a path to the desktop entry iterate over the
list and return the first file that exists. If none exist return
None.

data/usr-share/bubblejail/profiles/chromium.toml

@@ -2,7 +2,10 @@
 # SPDX-FileCopyrightText: 2020 igo95862
 
 # Chromium
-dot_desktop_path = "/usr/share/applications/chromium.desktop"
+dot_desktop_path = [
+    "/usr/share/applications/chromium-browser.desktop",
+    "/usr/share/applications/chromium.desktop",
+]
 description='''
 Chromium web browser
 '''

data/usr-share/bubblejail/profiles/firefox.toml

@@ -2,7 +2,10 @@
 # SPDX-FileCopyrightText: 2020 igo95862
 
 # Firefox on X11
-dot_desktop_path = "/usr/share/applications/firefox.desktop"
+dot_desktop_path = [
+    "/usr/share/applications/firefox.desktop",
+    "/usr/share/applications/firefox-esr.desktop",
+]
 is_gtk_application = true
 description='''
 Firefox web browser.

data/usr-share/bubblejail/profiles/firefox_wayland.toml

@@ -2,7 +2,10 @@
 # SPDX-FileCopyrightText: 2020 igo95862
 
 # Firefox on Wayland
-dot_desktop_path = "/usr/share/applications/firefox.desktop"
+dot_desktop_path = [
+    "/usr/share/applications/firefox.desktop",
+    "/usr/share/applications/firefox-esr.desktop",
+]
 is_gtk_application = true
 description='''
 Firefox using wayland display protocol.

src/bubblejail/bubblejail_directories.py

@@ -150,7 +150,7 @@ def create_new_instance(
         instance = BubblejailInstance(instance_directory)
 
         if create_dot_desktop:
-            if profile.dot_desktop_path is not None:
+            if profile.desktop_entries_paths:
                 cls.overwrite_desktop_entry_for_profile(
                     instance_name=new_name,
                     profile_object=profile,
@@ -233,21 +233,22 @@ def overwrite_desktop_entry_for_profile(
         elif profile_object is not None:
             # 3. Profile was passed directly
             profile = profile_object
-            dot_desktop_path = profile.dot_desktop_path
+            dot_desktop_path = profile.find_desktop_entry()
         elif profile_name is not None:
             # 4. Profile name was passed
             profile = cls.profile_get(profile_name)
-            dot_desktop_path = profile.dot_desktop_path
+            dot_desktop_path = profile.find_desktop_entry()
         elif instance.metadata_creation_profile_name is not None:
             # 5. Use the profile name saved in meta data
             profile = cls.profile_get(instance.metadata_creation_profile_name)
-            dot_desktop_path = profile.dot_desktop_path
+            dot_desktop_path = profile.find_desktop_entry()
         else:
             raise RuntimeError('No profile or desktop entry specified')
 
         if dot_desktop_path is None:
-            raise TypeError('Desktop entry path can\'t be None.',
-                            dot_desktop_path)
+            raise RuntimeError(
+                "Couldn't resolve desktop entry path."
+            )
 
         new_dot_desktop = IniFile.IniFile(
             filename=str(dot_desktop_path))

src/bubblejail/bubblejail_gui_qt.py

@@ -575,22 +575,24 @@ def can_be_created(self) -> Tuple[bool, str]:
             except BubblejailInstanceNotFoundError:
                 ...
 
-        if self.current_profile is not None:
-            if self.current_profile.dot_desktop_path is not None and \
-                    not self.current_profile.dot_desktop_path.is_file():
-                warn_text = (
-                    '⚠ WARNING \n'
-                    'Desktop entry does not exist\n'
-                    'Maybe you don\'t have application installed?'
-                )
-                return False, warn_text
-            else:
-                return True, (
-                    f"{self.current_profile.description}\n"
-                    f"Import tips:  {self.current_profile.import_tips}"
-                )
-
-        return True, 'Create empty profile'
+        if self.current_profile is None:
+            return True, 'Create empty profile'
+
+        if (
+            self.current_profile.desktop_entries_paths
+            and self.current_profile.find_desktop_entry() is None
+        ):
+            warn_text = (
+                '⚠ WARNING \n'
+                'Desktop entry does not exist\n'
+                'Maybe you don\'t have application installed?'
+            )
+            return False, warn_text
+        else:
+            return True, (
+                f"{self.current_profile.description}\n"
+                f"Import tips:  {self.current_profile.import_tips}"
+            )
 
     def refresh_create_button(self) -> None:
         is_allowed, new_text = self.can_be_created()
@@ -603,10 +605,12 @@ def selection_changed(self, new_text: str) -> None:
             self.current_profile = None
         else:
             self.current_profile = BubblejailDirectories.profile_get(new_text)
-            if self.current_profile is not None and \
-                    self.current_profile.dot_desktop_path is not None:
+            if (
+                self.current_profile is not None
+                and self.current_profile.desktop_entries_paths
+            ):
                 self.name_widget.line_edit.setText(
-                    self.current_profile.dot_desktop_path.stem
+                    self.current_profile.desktop_entries_paths[0].stem
                 )
 
         self.refresh_create_button()

src/bubblejail/bubblejail_instance.py

@@ -278,19 +278,39 @@ async def edit_config_in_editor(self) -> None:
 class BubblejailProfile:
     def __init__(
         self,
-        dot_desktop_path: str | None = None,
+        dot_desktop_path: list[str] | str | None = None,
         is_gtk_application: bool = False,
         services:  ServicesConfDictType | None = None,
         description: str = 'No description',
         import_tips: str = 'None',
     ) -> None:
-        self.dot_desktop_path = (Path(dot_desktop_path)
-                                 if dot_desktop_path is not None else None)
+
+        match dot_desktop_path:
+            case list():
+                self.desktop_entries_paths = [
+                    Path(x) for x in dot_desktop_path
+                ]
+            case str():
+                self.desktop_entries_paths = [Path(dot_desktop_path)]
+            case None:
+                self.desktop_entries_paths = []
+            case _:
+                raise TypeError(
+                    "Desktop entry path be a str, list[str] or None "
+                    "not {dot_desktop_path!r}"
+                )
         self.is_gtk_application = is_gtk_application
         self.config = BubblejailInstanceConfig(services)
         self.description = description
         self.import_tips = import_tips
 
+    def find_desktop_entry(self) -> Path | None:
+        for path in self.desktop_entries_paths:
+            if path.exists():
+                return path
+
+        return None
+
 
 class BubblejailInstanceMetadata:
     def __init__(