fix: improve inventory and quests widget resizing at narrow widths

Resolved issues where inventory and quests widgets didn't properly adapt
to narrow desktop widths (~296px, 2 columns):
- Assets tab was cut off (1/3 off-screen)
- Widgets shrank vertically instead of expanding
- Sub-tabs overflowed horizontally

Changes:

1. Widget onResize Handlers (inventoryWidget.js, questsWidget.js):
   - Strengthened inventory onResize to call render() for full re-layout
   - Added quests onResize handler with re-render + width-aware styling
   - Both apply responsive CSS classes at narrow widths

2. Increased maxAutoSize for 2-Column Layouts:
   - inventoryWidget.js: h: 6 → h: 8 (creates expansion headroom)
   - questsWidget.js: h: 5 → h: 7 (user requested height)
   - Previously: defaultSize = maxAutoSize → zero expansion possible
   - Now: defaultSize < maxAutoSize → widgets can expand vertically

3. Added Missing Quests Widget Container Styles (style.css):
   - Added .rpg-quests-widget and .rpg-quests-views flex container styles
   - Proper overflow handling (hidden on container, auto on content)
   - Prevents Assets tab horizontal cut-off

4. Implemented Compact Mode CSS (style.css):
   - .rpg-inventory-compact: reduced padding, icon-only sub-tabs
   - Applied when widget width < 6 grid units
   - Prevents 3 sub-tabs from overflowing 296px container
   - Icons remain visible, labels hidden for space savings

5. Grid Engine Boolean Return (gridEngine.js):
   - setContainerWidth now returns true/false for column changes
   - Allows DashboardManager to optimize resize handling

Why This Works:
- Auto-layout expansion requires defaultSize < maxAutoSize for headroom
- Flex container styles prevent overflow with proper scroll handling
- Compact mode makes sub-tabs fit within narrow containers
- onResize handlers ensure internal layouts adapt to dimension changes

Fixes: Assets tab cut-off, vertical shrinking, sub-tab overflow at ~296px

style.css

@@ -6950,6 +6950,23 @@ body:has(.rpg-panel.rpg-position-left) #sheld {
     overflow-x: hidden;
 }
 
+/* Quests Widget - Flex container for proper scrolling */
+.rpg-quests-widget {
+    display: flex;
+    flex-direction: column;
+    flex: 1;
+    min-height: 0;
+    overflow: hidden;
+}
+
+/* Quests Views - Scrollable content area */
+.rpg-quests-views {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    overflow-x: hidden;
+}
+
 /* Sub-tabs Navigation */
 .rpg-inventory-subtabs {
     display: flex;
@@ -7648,6 +7665,25 @@ body:has(.rpg-panel.rpg-position-left) #sheld {
     }
 }
 
+/* Inventory Compact Mode (narrow widths, < 6 grid units) */
+.rpg-inventory-compact .rpg-inventory-subtabs {
+    gap: 0.25rem; /* Reduced from 0.5rem */
+}
+
+.rpg-inventory-compact .rpg-inventory-subtab {
+    padding: 0.4rem 0.6rem; /* Reduced from 0.5rem 1rem */
+    font-size: 0.85rem;
+}
+
+/* Hide labels on very narrow widths, show icons only */
+.rpg-inventory-compact .rpg-subtab-label {
+    display: none;
+}
+
+.rpg-inventory-compact .rpg-inventory-subtab i {
+    margin: 0;
+}
+
 /* ============================================
    QUESTS SYSTEM STYLING
    ============================================ */
@@ -7907,6 +7943,19 @@ body:has(.rpg-panel.rpg-position-left) #sheld {
     background: rgba(255, 255, 255, 0.1);
 }
 
+/* Quest widget header constraints for wide layouts */
+.rpg-quests-wide .rpg-quest-section-title {
+    max-width: 200px;
+    flex-shrink: 0;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.rpg-quests-wide .rpg-quest-header {
+    gap: 1rem;
+}
+
 /* Mobile Responsive Styles */
 @media (max-width: 768px) {
     .rpg-quests-subtabs {