fix dropdown menu font color

pkg/appview/static/css/style.css

···
     display: none;
 }
 
-.dropdown-item {
+.dropdown-menu .dropdown-item {
     display: block;
     width: 100%;
     padding: 0.75rem 1rem;
···
     font-size: 0.95rem;
 }
 
-.dropdown-item:hover {
+.dropdown-menu .dropdown-item:hover {
     background: var(--hover-bg);
 }
 
···
     border-top: 1px solid var(--border);
 }
 
-.logout-btn {
+.dropdown-menu .logout-btn {
     color: var(--danger);
     font-weight: 500;
 }