enable save button when validation fails

src/components/pages/SettingsPage.vue

@@ -245,11 +245,13 @@ export default {
             } catch(e) {
                 console.log(e);
                 alert("Failed to save settings!");
-            }
+            } finally {
 
                 // show loading
                 this.isSaving = false;
 
+            }
+
         },
         bytesToHex(uint8Array) {
             return Utils.bytesToHex(uint8Array);