Element Call SPA integration (#1283)

* Integrate Element Call into EX, being able to open its URLs and handle the call in-app.
* Add custom scheme support with format `element:call?url=...`.
* Update androix.webkit
* Silence the foreground service notification.
- Allow foreground service tap action to re-open the ongoing call.
- Unify notification small icons in different modules using a vector one.

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Co-authored-by: ElementBot <benoitm+elementbot@element.io>

tools/localazy/config.json

@@ -128,6 +128,12 @@
       "includeRegex": [
         "screen_create_poll_.*"
       ]
+    },
+    {
+      "name": ":features:call",
+      "includeRegex": [
+        "call_.*"
+      ]
     }
   ]
 }