(fix): remove unused dependencies

(fix): remove dead code
(fix): remove unused exports

apps/electron/package.json

@@ -26,9 +26,7 @@
     "validate:raw": "bun run build && bun run package:linux:raw",
     "validate": "if command -v nix >/dev/null 2>&1 && [ -z \"$IN_NIX_SHELL\" ]; then nix develop --command bun run validate:raw; else bun run validate:raw; fi"
   },
-  "dependencies": {
-    "electron-updater": "^6.6.2"
-  },
+  "dependencies": {},
   "devDependencies": {
     "@types/node": "^25.9.1",
     "electron": "^39.2.7",

apps/electron/src/main/main.ts

@@ -12,6 +12,7 @@ import {
 import { checkForUpdates } from "./updates.js";
 import {
   ipcChannels,
+  type DesktopScreenShareAudioOutput,
   type DesktopScreenShareCapabilities,
 } from "../shared/ipc.js";
 
@@ -88,7 +89,7 @@ function execJson(command: string, args: string[]) {
   });
 }
 
-async function listAudioOutputs() {
+async function listAudioOutputs(): Promise<DesktopScreenShareAudioOutput[]> {
   verboseLog("listAudioOutputs", { platform: process.platform });
 
   if (process.platform !== "linux") return [];
@@ -106,7 +107,9 @@ async function listAudioOutputs() {
       if (!id || !name) return null;
       return { id, name, isDefault: false };
     })
-    .filter(Boolean);
+    .filter(
+      (output): output is DesktopScreenShareAudioOutput => output != null,
+    );
 }
 
 async function listScreenShareSources() {