Tighten garage UI spacing

- Reduce panel, meter, and button spacing in the garage UI
- Update the garage hero image asset

arma/client/addons/garage/ui/src/styles.css

@@ -163,8 +163,8 @@ button:disabled {
 
 .garage-scroll-body {
     flex: 1;
-    min-height: 20rem;
-    max-height: 24rem;
+    min-height: clamp(10rem, 20vh, 16rem);
+    max-height: clamp(12rem, 25vh, 19rem);
     overflow: auto;
     display: grid;
     gap: 0.8rem;
@@ -172,7 +172,7 @@ button:disabled {
 }
 
 .garage-detail-body {
-    padding-top: 0.95rem;
+    padding-top: 0.75rem;
 }
 
 .garage-detail-grid {
@@ -195,7 +195,7 @@ button:disabled {
 
 .garage-detail-meta {
     grid-template-columns: repeat(3, minmax(0, 1fr));
-    margin-bottom: 1rem;
+    margin-bottom: 0.7rem;
 }
 
 .garage-summary-grid {
@@ -209,7 +209,7 @@ button:disabled {
 .garage-search-actions,
 .garage-action-row {
     grid-template-columns: repeat(2, minmax(0, 1fr));
-    gap: 0.65rem;
+    gap: 0.55rem;
 }
 
 .garage-category-grid {
@@ -235,8 +235,8 @@ button:disabled {
 
 .garage-meter-stack {
     display: grid;
-    gap: 0.75rem;
-    margin-bottom: 1rem;
+    gap: 0.55rem;
+    margin-bottom: 0.7rem;
 }
 
 .garage-eyebrow,
@@ -451,8 +451,8 @@ button:disabled {
 }
 
 .garage-btn {
-    min-height: 2.75rem;
-    padding: 0.72rem 1rem;
+    min-height: 2.5rem;
+    padding: 0.62rem 1rem;
     border-radius: 0.8rem;
     border: 1px solid var(--garage-border-strong);
     font-size: 0.82rem;