Remove rotation animations from circular buttons on hover

- Removed rotate(5deg) from icon buttons hover state
- Removed rotate(5deg) from FAB buttons hover state
- Removed icon-hover-rotate mixin from nav items
- Keep scale animations but remove tilt/rotation effects

Buttons now scale without rotating for cleaner interaction

assets/scss/main.scss

@@ -719,7 +719,7 @@ $ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
     
     &:hover:not(:disabled) {
       @include glass-colored($monaco-red-600, 0.1, 10px);
-      transform: rotate(5deg) scale(1.1);
+      transform: scale(1.1);
     }
   }
   
@@ -730,7 +730,7 @@ $ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
     box-shadow: $shadow-monaco;
     
     &:hover:not(:disabled) {
-      transform: translateY(-3px) rotate(5deg);
+      transform: translateY(-3px);
       box-shadow: $shadow-monaco-intense;
     }
   }

layouts/member.vue

@@ -355,7 +355,6 @@ watch(width, (newWidth) => {
   position: relative;
   overflow: hidden;
   @include ripple-effect();
-  @include icon-hover-rotate(10deg);
   
   &:hover {
     background: linear-gradient(135deg,