GUI warning when installing extension from deeplink (#2260)

ui/desktop/src/preload.ts

@@ -49,6 +49,7 @@ type ElectronAPI = {
   getBinaryPath: (binaryName: string) => Promise<string>;
   readFile: (directory: string) => Promise<FileResponse>;
   writeFile: (directory: string, content: string) => Promise<boolean>;
+  getAllowedExtensions: () => Promise<string[]>;
   on: (
     channel: string,
     callback: (event: Electron.IpcRendererEvent, ...args: unknown[]) => void
@@ -100,6 +101,7 @@ const electronAPI: ElectronAPI = {
   readFile: (filePath: string) => ipcRenderer.invoke('read-file', filePath),
   writeFile: (filePath: string, content: string) =>
     ipcRenderer.invoke('write-file', filePath, content),
+  getAllowedExtensions: () => ipcRenderer.invoke('get-allowed-extensions'),
   on: (
     channel: string,
     callback: (event: Electron.IpcRendererEvent, ...args: unknown[]) => void