Feat(Menu): Add drop mask

Add drop mask to menu. Optimize tool description.

src/assets/css/components/dnd/drop-mask.scss

@@ -0,0 +1,30 @@
+@use "@/assets/css/constants" as constants;
+
+[data-component=component-drop-mask] {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  padding: {
+    left: 10px;
+    right: 10px;
+    bottom: 10px;
+  };
+  background-color: constants.$origin-color;
+
+  .drop-mask-border {
+    display: flex;
+    width: 100%;
+    height: 100%;
+    justify-content: center;
+    align-items: center;
+    border: {
+      width: 2px;
+      color: constants.$font-secondary-color;
+      style: dashed;
+      radius: 8px;
+    };
+    font-size: 1.8em;
+  }
+}

src/assets/css/components/tools/store-card.scss

@@ -23,6 +23,7 @@
 
       .version {
         width: 0;
+        transition: all 0.2s;
       }
 
       .operation {
@@ -30,6 +31,7 @@
         font-size: 1.6em;
         gap: 4px;
         opacity: 0;
+        transition: all 0.2s;
 
         > *:hover {
           color: constants.$font-secondary-color;

src/assets/css/pages/tools-framework.scss

@@ -7,6 +7,7 @@
 
     .menu-droppable {
       display: flex;
+      position: relative;
       min-height: 0;
       flex: 1;
       width: 100%;