Upgrade to electron 16.0.7 (#308)

Couple of minor fixes (although doesn't look like it fixes https://github.com/vector-im/element-web/issues/20467)

Also un-pin the version as we now can (and should) upgrade electron
as we would a regular dependency.

package.json

@@ -61,7 +61,7 @@
     "app-builder-lib": "^22.14.10",
     "asar": "^2.0.1",
     "chokidar": "^3.5.2",
-    "electron": "16.0.6",
+    "electron": "^16.0.7",
     "electron-builder": "22.11.4",
     "electron-builder-squirrel-windows": "22.11.4",
     "electron-devtools-installer": "^3.1.1",