Enhance Crunchyroll v0.2.0

• Add option to show the air date of the next episode (if available) on the anime series page
• Add option to show AniList and MyAnimeList links next to the season dropdown
• Add option to maximize the video player when double-clicking on it
• Fix download sometimes not working (the extension had to get permissions for two cdn domains)
• Change settings storage layout. Settings will be reset to default if you modified any in one of the previous versions
• Remove active_tab and webRequestBlocking permissions as they're not needed
• Add release:firefox and release:chrome scripts to build release assets for the Firefox Addon Store / Chrome Web Store