remove languages option from codeblocklowlight

docs/src/demos/Examples/CodeBlockLanguage/CodeBlockComponent.vue

@@ -0,0 +1,59 @@
+<template>
+  <node-view-wrapper class="code-block">
+    <select contenteditable="false" v-model="selectedLanguage">
+      <option :value="null">
+        auto
+      </option>
+      <option disabled>
+        —
+      </option>
+      <option v-for="(language, index) in languages" :value="language" :key="index">
+        {{ language }}
+      </option>
+    </select>
+    <pre><node-view-content as="code" /></pre>
+  </node-view-wrapper>
+</template>
+
+<script>
+import { NodeViewWrapper, NodeViewContent, nodeViewProps } from '@tiptap/vue-2'
+import lowlight from 'lowlight/lib/core'
+
+export default {
+  components: {
+    NodeViewWrapper,
+    NodeViewContent,
+  },
+
+  props: nodeViewProps,
+
+  data() {
+    return {
+      languages: lowlight.listLanguages(),
+    }
+  },
+
+  computed: {
+    selectedLanguage: {
+      get() {
+        return this.node.attrs.language
+      },
+      set(language) {
+        this.updateAttributes({ language })
+      },
+    },
+  },
+}
+</script>
+
+<style lang="scss" scoped>
+.code-block {
+  position: relative;
+
+  select {
+    position: absolute;
+    top: 0.5rem;
+    right: 0.5rem;
+  }
+}
+</style>