Add a configuration toggle to enable alerts when spectating.

Default behavior is to not alert.

+ Changed to be black
+ Made a little thicker

Bolder outline
More defined shape

The problem was converting a negative int to an unsigned int. This was
resulting in a value of: (2^32) - n. Meaning that the room age was
extreamly old. After 48s the delay from the server will catch up and the
time diff will be 0 rather than negative, which is why after 48s the
room will change from 5+ hours to <1 min.

Iterate through the filter to see if everything matches the card.

 * ignore .tx folder
 * cmake: when UPDATE_TRANSLATIONS=ON, extract new strings only to the
english translation file.
 * added info in CONTRIBUTING.md
 * updated english translations

Ctrl + click on a user name to PM

Based on feedback, allow for shortcut for specs to view hands

"see hands" -> "see everything"

Its now easy to see which games you can chat/see hands in.

Consistency for certain affixes

Added new strings for Cockatrice
New Oracle translation
Cleaned up vanished strings

Hide filters-related buttons
Bypass the proxy model

Translations have been updated.

Games with only 1 player will now not focus on the chat when starting
the game. This helps with goldfishing.

re-split the menus, but rename the cockatrice one to “actions”

+ Added room name
+ takes you to kicked game tab

Two regressions; depends on the fix for #684, too