fix(screen): Breaking external API for num_lines function

src/screen/mod.rs

@@ -57,7 +57,7 @@ impl Screen {
     }
     /// Get the number of [`Lines`](std::str::Lines) in the text.
     #[must_use]
-    pub const fn get_line_count(&self) -> usize {
+    pub const fn line_count(&self) -> usize {
         self.line_count
     }
     /// Returns all the [Rows] within the bounds