Disable edit button while editing

app/components/place-details.gjs

@@ -305,6 +305,7 @@ export default class PlaceDetails extends Component {
             type="button"
             class="btn btn-outline"
             title="Edit"
+            disabled={{this.isEditing}}
             {{on "click" this.startEditing}}
           >
             <Icon @name="edit" @color="var(--link-color)" />

app/styles/app.css

@@ -603,6 +603,12 @@ abbr[title] {
   gap: 0.5rem;
 }
 
+.btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+  pointer-events: none;
+}
+
 .btn-outline {
   background: transparent;
   color: #333;