JS: using Proj4rs instead of Proj4js

Using Rust implementation [Proj4rs](https://www.npmjs.com/package/proj4rs) of the PROJ.4 project instead of the JavaScript implementation [Proj4js](https://www.npmjs.com/package/proj4).

* The aim of Proj4rs is to provide the same functionality as the proj4js library
* The goal of Proj4rs is not to be a replacement of PROJ, but instead being a lightweight implementation of transformations from CRS to CRS that could be used in Rust and WASM environments.

assets/package.json

@@ -16,7 +16,6 @@
     "jsts": "^2.11.0",
     "lit-html": "^3.1.1",
     "ol": "^10.2.1",
-    "proj4": "^2.11.0",
     "shpjs": "^6.1.0",
     "svg-sprite-loader": "^6.0.11",
     "svgo": "^3.2.0",
@@ -28,6 +27,7 @@
   "author": "3Liz",
   "license": "ISC",
   "dependencies": {
-    "ol-wfs-capabilities": "^2.0.0"
+    "ol-wfs-capabilities": "^2.0.0",
+    "proj4rs": "^0.1.5"
   }
 }

assets/src/index.js

@@ -32,7 +32,7 @@ import executeJSFromServer from './modules/ExecuteJSFromServer.js';
 
 import olDep from './dependencies/ol.js';
 import litHTMLDep from './dependencies/lit-html.js';
-import proj4 from 'proj4';
+import {proj4} from 'proj4rs/proj4.js';
 
 lizMap.ol = olDep;
 lizMap.litHTML = litHTMLDep;

assets/src/modules/Lizmap.js

@@ -33,7 +33,7 @@ import { Extent as olExtent, intersects as olExtentIntersects} from 'ol/extent.j
 import { Projection as olProjection, transform as olTransform, transformExtent as olTransformExtent, get as getProjection, clearAllProjections, addCommon } from 'ol/proj.js';
 import { register } from 'ol/proj/proj4.js';
 
-import proj4 from 'proj4';
+import {proj4} from 'proj4rs/proj4.js';
 import ProxyEvents from './ProxyEvents.js';
 
 /**