[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


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

Took 3 minutes

* Update some group comments so they link!

Took 14 minutes

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

cockatrice/src/filters/deck_filter_string.h

@@ -1,3 +1,9 @@
+/**
+ * @file deck_filter_string.h
+ * @ingroup DeckStorageWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef DECK_FILTER_STRING_H
 #define DECK_FILTER_STRING_H
 

cockatrice/src/filters/filter_builder.h

@@ -1,3 +1,9 @@
+/**
+ * @file filter_builder.h
+ * @ingroup CardDatabaseModelFilters
+ * @brief TODO: Document this.
+ */
+
 #ifndef FILTERBUILDER_H
 #define FILTERBUILDER_H
 

cockatrice/src/filters/filter_card.h

@@ -1,3 +1,9 @@
+/**
+ * @file filter_card.h
+ * @ingroup CardDatabaseModelFilters
+ * @brief TODO: Document this.
+ */
+
 #ifndef CARDFILTER_H
 #define CARDFILTER_H
 

cockatrice/src/filters/filter_string.h

@@ -1,3 +1,9 @@
+/**
+ * @file filter_string.h
+ * @ingroup CardDatabaseModelFilters
+ * @brief TODO: Document this.
+ */
+
 #ifndef FILTER_STRING_H
 #define FILTER_STRING_H
 

cockatrice/src/filters/filter_tree.h

@@ -1,3 +1,9 @@
+/**
+ * @file filter_tree.h
+ * @ingroup CardDatabaseModelFilters
+ * @brief TODO: Document this.
+ */
+
 #ifndef FILTERTREE_H
 #define FILTERTREE_H
 

cockatrice/src/filters/filter_tree_model.h

@@ -1,3 +1,9 @@
+/**
+ * @file filter_tree_model.h
+ * @ingroup CardDatabaseModelFilters
+ * @brief TODO: Document this.
+ */
+
 #ifndef FILTERTREEMODEL_H
 #define FILTERTREEMODEL_H
 

cockatrice/src/filters/syntax_help.h

@@ -1,3 +1,10 @@
+/**
+ * @file syntax_help.h
+ * @ingroup CardDatabaseModelFilters
+ * @ingroup DeckStorageWidgets
+ * @brief TODO: Document this.
+ */
+
 #ifndef SEARCH_SYNTAX_HELP_H
 #define SEARCH_SYNTAX_HELP_H