Added missing spanish translations

[BUG] Fixed black colour not selected

merge

[RELEASE] merge 2.5.1 to master

[FIX] Check if we are in a RESUMED state before showing the Dialog.

[IMPROVEMENT] More idiomatic kotlin

[NEW] WordPress Oauth login support

Custom (WordPress on-premise) and WordPress-Com.

[FIX] Opened notifications not cleared

[FIX] fix auth deeplink

[FIX] Fix uppercase url scheme

[FIX] fix typing status for 2.5.1

[FIX] fix crash uninitialized adapter

[FIX] Fix cast exception when parsing an OrderedList object

[NEW] German language support

[I18N] German translation

[I18N] Improvements in Russian translation