fix: reduce action button size

Decreased font size (13px -> 12px), padding (8px 16px -> 6px 12px), and min-height (36px -> 32px) for better proportions.

Author: kaic

src/index.css

@@ -566,7 +566,7 @@ body {
 /* Larger action buttons */
 .win98-button-primary,
 .win98-button-danger {
-  font-size: 13px;
-  padding: 8px 16px;
-  min-height: 36px;
+  font-size: 12px;
+  padding: 6px 12px;
+  min-height: 32px;
 }