Added close icon to gifted prompts dialog

src/components/GiftedPrompts.vue

@@ -1,7 +1,15 @@
 <template>
   <div v-if="visible" class="dialog-overlay">
     <div class="dialog">
-      <h1 class="text-xl font-bold text-center mb-4">Here's one:</h1>
+      <h1 class="text-xl font-bold text-center mb-4 relative">
+        Here's one:
+        <div
+          class="text-lg text-center p-2 leading-none absolute right-0 -top-1"
+          @click="cancel"
+        >
+          <fa icon="xmark" class="w-[1em]"></fa>
+        </div>
+      </h1>
       <span class="flex justify-between">
         <span
           class="rounded-l border border-slate-400 bg-slate-200 px-4 py-2 flex"