- Display total size by tag or tracker of torrents on sidebar (#369, …

…@sabersalv)

- Improve memoization of "TorrentListRow" and "ProgressBar" components
- Fix loading indicator bar alignment (#396, @DopyConqueror)
- New translations
  - Arabic, thanks to yngams
  - Chinese Simplified, thanks to @davidxuang
  - Czech, thanks to @Kedlub
  - Italian, thanks to @GiorgioBrux
  - German, thanks to @Kiina
  - Japanese, thanks to @Kuri0421 and @Kiina
  - Korean, thanks to @Kiina
  - Polish, thanks to @retmas-gh
  - Spanish, thanks to @oaknuggins
  - Norwegian, thanks to Daddie0
- Bump dependencies

[4.7.0]: https://github.com/jesec/flood/compare/v4.6.1...v4.7.0