Added an Esperanto (eo) translation.
Fixed outline refresh after quick tab switches (#337).
Refactored timer usage for consistency.
Fixed `Project` label shown untranslated in other languages (#70, #373).
Removed caption as it's not visible.
Fixed `Run` toolbar label not being translated (#70, #373).
Added translation label for `Toggle Bookmark` toolbar icon (#70, #373).
Updated messages for to match translations (#70).
Updated translation building script to handle non-string parameters (#70).
Updated language files with new messages (#70).