Add Vencord Loading & tray icon

src/main/constants.ts

@@ -0,0 +1,7 @@
+import { app } from "electron";
+import { join } from "path";
+
+export const DATA_DIR = process.env.VENCORD_USER_DATA_DIR ?? join(app.getPath("userData"), "VencordDesktop");
+export const VENCORD_FILES_DIR = join(DATA_DIR, "vencordDist");
+
+export const USER_AGENT = `VencordDesktop/${app.getVersion()} (https://github.com/Vencord/Electron)`;