fix: make ALT more visible

apps/client/src/features/editor/styles/media.css

@@ -38,6 +38,60 @@
     line-height: var(--mantine-line-height-md);
   }
 
+  .media-alt-badge {
+    position: absolute;
+    right: 8px;
+    bottom: 8px;
+    z-index: 1;
+    padding: 2px 8px;
+    border-radius: 6px;
+    font-size: 11px;
+    font-weight: 600;
+    letter-spacing: 0.03em;
+    cursor: default;
+    user-select: none;
+    background-color: var(--mantine-color-body);
+
+    @mixin light {
+      border: 1px solid var(--mantine-color-gray-3);
+      color: var(--mantine-color-gray-7);
+    }
+
+    @mixin dark {
+      border: 1px solid var(--mantine-color-dark-4);
+      color: var(--mantine-color-dark-1);
+    }
+
+    @media print {
+      display: none;
+    }
+
+    &::after {
+      content: attr(data-alt);
+      display: none;
+      position: absolute;
+      right: 0;
+      bottom: calc(100% + 6px);
+      width: max-content;
+      max-width: 320px;
+      padding: 6px 10px;
+      border-radius: var(--mantine-radius-default);
+      font-size: var(--mantine-font-size-sm);
+      font-weight: 400;
+      letter-spacing: normal;
+      line-height: var(--mantine-line-height-sm);
+      white-space: pre-wrap;
+      overflow-wrap: break-word;
+      text-align: start;
+      background-color: var(--mantine-color-gray-9);
+      color: var(--mantine-color-white);
+    }
+
+    &:hover::after {
+      display: block;
+    }
+  }
+
   .media-pulse {
     animation: media-pulse 1.2s ease-in-out infinite;