merge source (#2)

* Added Discord timeout

* Add getOptions in plugin util

* Mutex in ffmpeg conversion (only supports one command at a time)

* Add menu customization in plugin system

* Add ytpl package (playlist info)

* Handle ffmpeg metadata flags when metadata is not present

* Only use artist in file name if present

* Export sendError method

* Handle image not present in metadata util

* Add downloader utils (getFolder and default menu label)

* Pass (optional) existing metadata and subfolder in mp3 converter

* Add listener to download playlist

* Add custom menu in downloader plugin ("download playlist" item)

* nit: fix main CSS style

* Only set the "enable" item in menu if plugin not enabled

* Navigation plugin: inject HTML once CSS is loaded

Co-authored-by: Sem Visscher <semvisscher10@gmail.com>
Co-authored-by: TC <th-ch@users.noreply.github.com>

package.json

@@ -66,6 +66,7 @@
 		"@ffmpeg/core": "^0.8.5",
 		"@ffmpeg/ffmpeg": "^0.9.7",
 		"YoutubeNonStop": "git://github.com/lawfx/YoutubeNonStop.git#v0.8.1",
+		"async-mutex": "^0.3.1",
 		"browser-id3-writer": "^4.4.0",
 		"discord-rpc": "^3.2.0",
 		"downloads-folder": "^3.0.1",
@@ -77,7 +78,8 @@
 		"electron-updater": "^4.3.6",
 		"filenamify": "^4.2.0",
 		"node-fetch": "^2.6.1",
-		"ytdl-core": "^4.4.5"
+		"ytdl-core": "^4.4.5",
+		"ytpl": "^2.0.5"
 	},
 	"devDependencies": {
 		"electron": "^11.2.3",