[Cleanup] Unused #includes (#6367)

* [Cleanup] Unused #includes

Took 44 minutes

* [Cleanup] More unused #includes

Took 55 minutes

* [Cleanup] Include QSet

Took 4 minutes

* [Cleanup] Include QDebug in deck_list.cpp

Took 3 minutes

* [Cleanup] Include protocol stuff in servatrice_database_interface.h

Took 3 minutes

* [Cleanup] Include QDialogButtonBox

Took 8 minutes

* [Cleanup] Include QUrl

Took 8 minutes

* [Cleanup] Include QTextOption in header.

Took 3 minutes

* [Cleanup] Include QMap in user_list_manager.h

Took 8 minutes

* [Cleanup] Adjust qjson

Took 8 minutes

* [Cleanup] include button box.

Took 3 minutes

* [Cleanup] Redo fwd declarations.

* [Cleanup] Redo last removed fwd declarations.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/visual_deck_editor/visual_deck_editor_widget.cpp

@@ -7,7 +7,6 @@
 #include "../cards/card_info_picture_with_text_overlay_widget.h"
 #include "../cards/deck_card_zone_display_widget.h"
 #include "../general/layout_containers/flow_widget.h"
-#include "../general/layout_containers/overlap_control_widget.h"
 #include "../tabs/visual_deck_editor/tab_deck_editor_visual.h"
 #include "../tabs/visual_deck_editor/tab_deck_editor_visual_tab_widget.h"
 

cockatrice/src/interface/widgets/visual_deck_editor/visual_deck_editor_widget.h

@@ -9,7 +9,6 @@
 
 #include "../cards/card_info_picture_with_text_overlay_widget.h"
 #include "../cards/card_size_widget.h"
-#include "../general/layout_containers/flow_widget.h"
 #include "../general/layout_containers/overlap_control_widget.h"
 #include "../quick_settings/settings_button_widget.h"