1.2.2

- Update URLs and copyright year
- Add basic GitLab pipeline
- Fix compilation with gcc-10
- Update URLs from goodies.x.o to docs.x.o (Bug #16156)
- s/http/https
- Fix build with panel 4.15
- Replace GtkStock buttons
- Rename applet to plugin (Bug #15582)
- Post release tag bump
- Translation Updates:
  Albanian, Arabic, Armenian (Armenia), Asturian, Basque, Belarusian,
  Bulgarian, Catalan, Chinese (China), Chinese (Taiwan), Croatian, Czech,
  Danish, Dutch, Eastern Armenian, English (Australia), English (United
  Kingdom), Finnish, French, Galician, German, Greek, Hebrew, Hungarian,
  Icelandic, Indonesian, Interlingue, Italian, Japanese, Korean,
  Lithuanian, Malay, Norwegian Bokmål, Occitan (post 1500), Polish,
  Portuguese, Portuguese (Brazil), Russian, Serbian, Slovak, Slovenian,
  Spanish, Swedish, Thai, Turkish, Uighur, Ukrainian
This tag has no release notes.