fix: update widget sizing for 1080p screens - Scene, Inventory, and Quests tabs

**Scene Tab (presentCharacters):**
- Desktop: 3×2 (wide and short, fits 1080p viewport)
- Mobile: 2×4 (narrow and tall for vertical stacking)

**Inventory Tab:**
- Desktop: 3×7 (full width, spacious) instead of 2×6
- Mobile: 2×5 (full width, compact)

**Quests Tab:**
- Desktop: 3×7 (full width, spacious) instead of 2×5
- Mobile: 2×5 (full width, compact)

All widgets now use full width at their respective column counts and
are properly sized to fit within 1080p screens without scrolling off.

src/systems/dashboard/widgets/questsWidget.js

@@ -395,18 +395,18 @@ export function registerQuestsWidget(registry, dependencies) {
         description: 'Quest tracking with main and optional quests',
         category: 'quests',
         minSize: { w: 2, h: 4 },
-        // Column-aware sizing: compact on mobile, spacious on desktop
+        // Column-aware sizing: compact on mobile, full width on desktop
         defaultSize: (columns) => {
             if (columns <= 2) {
-                return { w: 2, h: 4 }; // Mobile: 2×4 (full width, compact)
+                return { w: 2, h: 5 }; // Mobile: 2×5 (full width, compact)
             }
-            return { w: 2, h: 5 }; // Desktop: 2×5 (default)
+            return { w: 3, h: 7 }; // Desktop: 3×7 (full width, spacious for 1080p)
         },
         maxAutoSize: (columns) => {
             if (columns <= 2) {
-                return { w: 2, h: 7 }; // Mobile: 2×7 max (increased for expansion headroom)
+                return { w: 2, h: 8 }; // Mobile: 2×8 max
             }
-            return { w: 3, h: 7 }; // Desktop: 3×7 max (can expand)
+            return { w: 3, h: 10 }; // Desktop: 3×10 max (can expand)
         },
         requiresSchema: false,