Disable auto-update checks entirely

This fork has no update feed of its own, so never check fluxer.app
for updates on any platform (Velopack/electron autoUpdater/manual
check flows all pointed at the official API). Forces the fully inert
IPC-only updater path unconditionally; the "Check for Updates" UI
still works, it just reports unsupported instead of hitting the
network.

fluxer_desktop/src/main/Updater.ts

@@ -3,9 +3,7 @@
 import {createRequire} from 'node:module';
 import {BUILD_CHANNEL} from '@electron/common/BuildChannel';
 import {DESKTOP_BUILD_VARIANT} from '@electron/common/BuildVariant';
-import {isPortableMode} from '@electron/common/UserDataPath';
 import {destroyDesktopTray} from '@electron/main/DesktopTray';
-import {isFlatpakRuntime} from '@electron/main/LinuxSandbox';
 import {setQuitting} from '@electron/main/Window';
 import {app, autoUpdater, type BrowserWindow, ipcMain} from 'electron';
 import log from 'electron-log';
@@ -602,25 +600,9 @@ function registerManualUpdater(
 }
 
 export function registerUpdater(getMainWindow: () => BrowserWindow | null) {
-	if (!app.isPackaged) {
-		registerManualUpdater(getMainWindow, 'unpackaged');
-		return;
-	}
-	if (isPortableMode()) {
-		registerManualUpdater(getMainWindow, 'platform');
-		return;
-	}
-	if (isFlatpakRuntime()) {
-		registerManualUpdater(getMainWindow, 'managed-package');
-		return;
-	}
-	if (process.platform === 'win32') {
-		registerVelopackUpdater(getMainWindow);
-		return;
-	}
-	if (process.platform === 'darwin') {
-		registerElectronUpdater(getMainWindow);
-		return;
-	}
-	registerManualUpdater(getMainWindow, 'platform');
+	// This fork points at a self-hosted instance and has no update feed of its
+	// own -- never check fluxer.app for updates on any platform (would either
+	// silently fail against the official feed or, worse, offer to replace this
+	// build with the stock one). Always use the fully inert IPC-only path.
+	registerManualUpdater(getMainWindow, 'unpackaged');
 }