[I18N] Add traditional Chinese(zh-TW) translation file

[i18n] Update DE strings.xml

[RELEASE] Merge DEVELOP into BETA

[NEW] Video conference

Also enables the video conferencing from the UserDetails fragment.

[IMPROVEMENT] Chat list UI improvements

[I18N] Add French and Some Hindi Translations

[FIX] About Screen in landscape view

[I18N] Portuguese (Portugal)

😠 no comments 😠

And now that I think of it, does make much sense in our gramar to have `escrevendo`...
Maybe I'm getting to used to talk to BR people 😁 
Probably the last correction.