give the selection cards their own parts instead of label blobs

src/ui/selection/StationContent.h

@@ -5,7 +5,8 @@
 #include "SelectionContent.h"
 #include "SelectionContentFactory.h"
 
-class QLabel;
+class BarRow;
+class StatRow;
 
 // The card for one selected defence station, player or enemy
 // (REQ-UI-STATION-STATS-PANEL): its HP plus the combined damage, range and fire rate of
@@ -23,5 +24,8 @@ protected:
 
 private:
     entt::entity m_entity;
-    QLabel*      m_statsLabel;
+    BarRow*      m_hpBar;
+    StatRow*     m_damageRow;
+    StatRow*     m_rangeRow;
+    StatRow*     m_fireRateRow;
 };