Remote URL hardcoding compatibility (#1810)

* Remote URL compatibility
---------

Co-authored-by: jeffvli <jeffvictorli@gmail.com>

src/preload/index.d.ts

@@ -8,6 +8,7 @@ declare global {
         electron: ElectronAPI;
         LEGACY_AUTHENTICATION?: boolean;
         queryLocalFonts?: () => Promise<Font[]>;
+        REMOTE_URL?: string;
         SERVER_LOCK?: boolean;
         SERVER_NAME?: string;
         SERVER_TYPE?: ServerType;

src/preload/local-settings.ts

@@ -74,6 +74,7 @@ const env = {
         SERVER_TYPE !== null
             ? process.env.LEGACY_AUTHENTICATION?.toLocaleLowerCase() === 'true'
             : false,
+    REMOTE_URL: process.env.REMOTE_URL ?? '',
     SERVER_LOCK:
         SERVER_TYPE !== null ? process.env.SERVER_LOCK?.toLocaleLowerCase() === 'true' : false,
     SERVER_NAME: process.env.SERVER_NAME ?? '',