Combo highlight config, tooltips, nameplates, hotbars fixes

- Combo highlight: configurable color, glow, line style (solid/dashed/dotted), thickness
- Tooltips: font selection, scaling slider, improved wrap/cramping handling
- Nameplates: custom quest icons with config, position smoothing fix for jitter
- Hotbars: hide keybinds on empty slots, combo highlight within icon bounds
- HudHelper: restore default nameplates on plugin disable

Co-authored-by: Cursor <cursoragent@cursor.com>

Interface/Nameplates/NameplateConfig.cs

@@ -413,6 +413,16 @@ namespace HSUI.Interface.GeneralElements
         [NestedConfig("Health Bar", 40)]
         public NameplateBarConfig BarConfig = null!;
 
+        /// <summary>Quest/state icon (e.g. ! ? above NPCs). Use Position and Size to resize and reposition around the nameplate.</summary>
+        [NestedConfig("Icon (Quest/State)", 42)]
+        public NameplateIconConfig IconConfig = new NameplateIconConfig(
+            new Vector2(0, -28),
+            new Vector2(32, 32),
+            DrawAnchor.Bottom,
+            DrawAnchor.Top
+        )
+        { Strata = StrataLevel.LOWEST };
+
         public NameplateBarConfig GetBarConfig() => BarConfig;
 
         public NameplateWithNPCBarConfig(