feat(config): add shell version 50 to metadata.json

metadata.json

@@ -1,6 +1,6 @@
 {
     "uuid": "BingWallpaper@ineffable-gmail.com",
-    "shell-version": ["45", "46", "47", "48", "49"],
+    "shell-version": ["45", "46", "47", "48", "49", "50"],
     "name": "Bing Wallpaper",
     "settings-schema": "org.gnome.shell.extensions.bingwallpaper",
     "description": "Sync your wallpaper to today's Microsoft Bing image of the day (the image you see when you visit Bing.com).\n\n *Disclaimer*: this extension is unofficial and not affiliated with Bing or Microsoft in any way. Images are protected by copyright and are licensed only for use as wallpapers.\n\nFeatures:\n* UHD resolution wallpapers\n* Automatically fetches current Bing wallpaper of the day and sets as both lock screen and desktop wallpaper (user selectable on GNOME versions that support it)\n* Doesn't poll continuously - only once per day and on startup (schedules a refresh when Bing is due to update)\n * random mode (from previously downloaded wallpapers)\n *NEW: select/cycle wallpaper through previously downloaded images\n* Language support: English (en), German (de), Dutch (nl), Italian (it), Polish (pl), Chinese (zh_CN, zh_TW), French (fr), Portuguese (pt), Ukrainian (uk), Russian (ru_RU), Spanish (es), Korean (ko), Indonesian (id), Catalan (ca), Norwegian Bokmål (nb) & Nynorsk (ni), Swedish (sv), Arabic (ar), Hungarian (hu) and Japanese (ja) - a HUGE thanks to the translators\n\nThis extension was forked from the NASA APOD extension by Elinvention (https://github.com/Elinvention) and inspired by Bing Desktop Wallpaper Changer by Utkarsh Gupta (https://github.com/UtkarshGpta).\n\nAlways restart GNOME after manually updating extensions. Please report bugs to the GitHub page below:",