[Documentation] Sort *every* file into a doxygen group. (#6198)

* Sort *every* file into a doxygen group.

Took 7 hours 9 minutes

Took 18 seconds

Took 2 minutes

* Lint some ingroup definitions.

Took 10 minutes


Took 2 seconds

* Just include the groups in the Doxyfile in this commit.

Took 3 minutes

* Update some group comments so they link!

Took 14 minutes

---------

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

cockatrice/src/interface/widgets/general/background_sources.h

@@ -1,3 +1,9 @@
+/**
+ * @file background_sources.h
+ * @ingroup UI
+ * @brief TODO: Document this.
+ */
+
 #ifndef COCKATRICE_BACKGROUND_SOURCES_H
 #define COCKATRICE_BACKGROUND_SOURCES_H
 

cockatrice/src/interface/widgets/general/display/banner_widget.h

@@ -1,3 +1,11 @@
+/**
+ * @file banner_widget.h
+ * @ingroup Widgets
+ * @ingroup DeckEditorCardGroupWidgets
+ * @ingroup DeckStorageWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef BANNER_WIDGET_H
 #define BANNER_WIDGET_H
 

cockatrice/src/interface/widgets/general/display/bar_widget.h

@@ -1,3 +1,10 @@
+/**
+ * @file bar_widget.h
+ * @ingroup Widgets
+ * @ingroup DeckEditorAnalyticsWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef BAR_WIDGET_H
 #define BAR_WIDGET_H
 

cockatrice/src/interface/widgets/general/display/dynamic_font_size_label.h

@@ -1,3 +1,9 @@
+/**
+ * @file dynamic_font_size_label.h
+ * @ingroup Widgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef DYNAMICFONTSIZELABEL_H
 #define DYNAMICFONTSIZELABEL_H
 

cockatrice/src/interface/widgets/general/display/dynamic_font_size_push_button.h

@@ -1,3 +1,9 @@
+/**
+ * @file dynamic_font_size_push_button.h
+ * @ingroup PrintingWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef DYNAMICFONTSIZEPUSHBUTTON_H
 #define DYNAMICFONTSIZEPUSHBUTTON_H
 

cockatrice/src/interface/widgets/general/display/labeled_input.h

@@ -1,3 +1,9 @@
+/**
+ * @file labeled_input.h
+ * @ingroup DeckEditorCardGroupWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef LABELED_INPUT_H
 #define LABELED_INPUT_H
 

cockatrice/src/interface/widgets/general/display/percent_bar_widget.h

@@ -1,3 +1,10 @@
+/**
+ * @file percent_bar_widget.h
+ * @ingroup Widgets
+ * @ingroup DeckEditorAnalyticsWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef PERCENT_BAR_WIDGET_H
 #define PERCENT_BAR_WIDGET_H
 

cockatrice/src/interface/widgets/general/display/shadow_background_label.h

@@ -1,3 +1,9 @@
+/**
+ * @file shadow_background_label.h
+ * @ingroup PrintingWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef STYLEDLABEL_H
 #define STYLEDLABEL_H
 

cockatrice/src/interface/widgets/general/home_styled_button.h

@@ -1,6 +1,8 @@
-//
-// Created by ascor on 6/15/25.
-//
+/**
+ * @file home_styled_button.h
+ * @ingroup Widgets
+ * @brief TODO: Document this.
+ */
 
 #ifndef HOME_STYLED_BUTTON_H
 #define HOME_STYLED_BUTTON_H

cockatrice/src/interface/widgets/general/home_widget.h

@@ -1,3 +1,10 @@
+/**
+ * @file home_widget.h
+ * @ingroup Core
+ * @ingroup Widgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef HOME_WIDGET_H
 #define HOME_WIDGET_H
 #include "../../../server/abstract_client.h"

cockatrice/src/interface/widgets/general/layout_containers/flow_widget.h

@@ -1,3 +1,9 @@
+/**
+ * @file flow_widget.h
+ * @ingroup UI
+ * @brief TODO: Document this.
+ */
+
 #ifndef FLOW_WIDGET_H
 #define FLOW_WIDGET_H
 #include "../../../layouts/flow_layout.h"

cockatrice/src/interface/widgets/general/layout_containers/overlap_control_widget.h

@@ -1,3 +1,9 @@
+/**
+ * @file overlap_control_widget.h
+ * @ingroup UI
+ * @brief TODO: Document this.
+ */
+
 #ifndef OVERLAP_CONTROL_WIDGET_H
 #define OVERLAP_CONTROL_WIDGET_H
 #include "../display/labeled_input.h"

cockatrice/src/interface/widgets/general/layout_containers/overlap_widget.h

@@ -1,3 +1,9 @@
+/**
+ * @file overlap_widget.h
+ * @ingroup UI
+ * @brief TODO: Document this.
+ */
+
 #ifndef OVERLAP_WIDGET_H
 #define OVERLAP_WIDGET_H