Card configure view: "Edit text"/"Save" -> "Rename card"/"Rename"

Matches the project rename form's wording ("Renaming…"/"Rename").

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/views/CardConfigureView.vue

@@ -83,7 +83,7 @@ async function onSaveText() {
       </div>
 
       <section class="config-section">
-        <h2>Edit text</h2>
+        <h2>Rename card</h2>
         <form class="field-row" @submit.prevent="onSaveText">
           <input
             v-model="textDraft"
@@ -94,7 +94,7 @@ async function onSaveText() {
             aria-label="Card text"
           />
           <button type="submit" :disabled="saving || textDraft.trim() === card.text">
-            {{ saving ? 'Saving…' : 'Save' }}
+            {{ saving ? 'Renaming…' : 'Rename' }}
           </button>
         </form>
         <p v-if="saveError" class="form-error">{{ saveError.message }}</p>