fix: 解决“快速发送”模块中，主题名称较长时，外层卡片缩小到一定程度后不能再随外层容器缩小而缩小的问题

app/src/renderer/src/views/QuickSend.vue

@@ -692,21 +692,21 @@ onUnmounted(() => {
   min-height: 0;
   overflow-y: auto;
   display: grid;
-  grid-template-columns: 1fr;
+  grid-template-columns: minmax(0, 1fr);
   gap: 12px;
   padding-right: 4px;
   align-content: start;
 
   &.columns-1 {
-    grid-template-columns: 1fr;
+    grid-template-columns: minmax(0, 1fr);
   }
 
   &.columns-2 {
-    grid-template-columns: repeat(2, 1fr);
+    grid-template-columns: repeat(2, minmax(0, 1fr));
   }
 
   &.columns-3 {
-    grid-template-columns: repeat(3, 1fr);
+    grid-template-columns: repeat(3, minmax(0, 1fr));
   }
 }