v0.9.4: Theme description

Update to version 0.9.4:

Added a description for the theme. Now you can add a description to the themes in the editor. This description will be displayed in the round view during the game and when choosing any first question with the theme's description.

Enhancements:

• When a player answers a question, the theme's name is written at the bottom, just as when viewing the question.
• Fixed an error where it was impossible to replay audio or video if any error occurred during the first playback.
• Added a meaningful error image for cases where there are problems loading pictures.
• Added hotkey hints for question control buttons.
• The shift button shows/hides the hint for the host.
• The size of the hint panel for the host changes depending on the amount of text in the hint.
• Fixed an error in the players' panel if a new player joined during an auction.
• Fixed an application freeze when opening incorrect packs containing empty rounds or themes.
• Fixed a game freeze when playing an empty finale.
• Corrected the game's behavior when a new player connects during the final round.