Aurora SpotiRip desktop and web app

- Spotify playlist, library, album and artist browsing with in-app playback
- Song, playlist and album downloads via spotdl with YouTube and Bandcamp fallbacks
- Electron desktop app (castLabs Widevine) with a permanent sidebar layout
- Linux and Windows packaging scripts

electron/preload.ts

@@ -0,0 +1,7 @@
+import { contextBridge, ipcRenderer } from "electron";
+
+contextBridge.exposeInMainWorld("spotiripDesktop", {
+  getDownloadFolder: () => ipcRenderer.invoke("settings:get-download-folder"),
+  chooseDownloadFolder: () => ipcRenderer.invoke("settings:choose-download-folder"),
+  showInFolder: (path: string) => ipcRenderer.invoke("shell:show-in-folder", path),
+});