Move modal frame parts away from modal-content into modal, improve error handling

src/components/settings_modal/settings_modal.vue

@@ -5,10 +5,47 @@
     :class="{ peek: modalPeeked }"
     :no-background="modalPeeked"
   >
-    <SettingsModalContent
-      v-if="modalActivated"
-      class="modal-panel"
-    />
+    <div class="settings-modal-panel panel">
+      <div class="panel-heading">
+        <span class="title">
+          {{ $t('settings.settings') }}
+        </span>
+        <transition name="fade">
+          <template v-if="currentSaveStateNotice">
+            <div
+              v-if="currentSaveStateNotice.error"
+              class="alert error"
+              @click.prevent
+            >
+              {{ $t('settings.saving_err') }}
+            </div>
+
+            <div
+              v-if="!currentSaveStateNotice.error"
+              class="alert transparent"
+              @click.prevent
+            >
+              {{ $t('settings.saving_ok') }}
+            </div>
+          </template>
+        </transition>
+        <button
+          class="btn"
+          @click="peekModal"
+        >
+          {{ $t('general.peek') }}
+        </button>
+        <button
+          class="btn"
+          @click="closeModal"
+        >
+          {{ $t('general.close') }}
+        </button>
+      </div>
+      <div class="panel-body">
+        <SettingsModalContent v-if="modalActivated" />
+      </div>
+    </div>
   </Modal>
 </template>