[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

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

common/abstract_deck_list_card_node.h

@@ -15,6 +15,7 @@
 
 /**
  * @class AbstractDecklistCardNode
+ * @ingroup DeckModels
  * @brief Abstract base class for all deck list nodes that represent
  *        actual card entries.
  *

common/abstract_deck_list_node.h

@@ -22,6 +22,7 @@
 
 /**
  * @enum DeckSortMethod
+ * @ingroup DeckModels
  * @brief Defines the different sort strategies a node may use
  *        to order its children.
  *
@@ -43,6 +44,7 @@ class InnerDecklistNode;
 
 /**
  * @class AbstractDecklistNode
+ * @ingroup DeckModels
  * @brief Base class for all nodes in the deck list tree.
  *
  * This class defines the common interface for every node in the

common/deck_list.h

@@ -28,6 +28,7 @@ class InnerDecklistNode;
 
 /**
  * @class SideboardPlan
+ * @ingroup Decks
  * @brief Represents a predefined sideboarding strategy for a deck.
  *
  * Sideboard plans store a named list of card movements that should be applied
@@ -88,6 +89,7 @@ public:
 
 /**
  * @class DeckList
+ * @ingroup Decks
  * @brief Represents a complete deck, including metadata, zones, cards,
  *        and sideboard plans.
  *

common/deck_list_card_node.h

@@ -17,6 +17,7 @@
 
 /**
  * @class DecklistCardNode
+ * @ingroup DeckModels
  * @brief Concrete node type representing an actual card entry in the deck.
  *
  * This class extends AbstractDecklistCardNode to hold all information