chore(#693): re-implement dev tools plugin

Author: Decipher

packages/druxt/src/components/DruxtDevelTemplate.vue

@@ -7,10 +7,9 @@
         v-text="label"
       />
     </select>
-    <!-- @TODO - Re-implement this. -->
-    <!-- <button @click="onClick">
+    <button @click="onClick">
       Create
-    </button> -->
+    </button>
   </div>
 </template>
 

packages/druxt/src/nuxt/index.js

@@ -189,18 +189,17 @@ const DruxtNuxtModule = defineNuxtModule({
 
     // Development mode features.
     if (nuxt.options.dev) {
-      // @TODO - AddServerMiddleware isn't part of @nuxt/kit
       // Add the template stubber server middleware.
-      // this.addServerMiddleware({
-      //   path: '/_druxt/template',
-      //   handler: 'druxt/dist/server-middleware/template.mjs'
-      // })
-
-      // // Add the Vue devtools plugin.
-      // this.addPlugin({
-      //   src: resolve(__dirname, '../dist/plugins/devtools.mjs'),
-      //   fileName: 'druxt-devtools.js'
-      // })
+      nuxt.options.serverMiddleware.push({
+        path: '/_druxt/template',
+        handler: 'druxt/dist/server-middleware/template.mjs'
+      })
+
+      // Add the Vue devtools plugin.
+      addPluginTemplate({
+        src: resolve(__dirname, '../dist/plugins/devtools.mjs'),
+        fileName: 'druxt-devtools.js'
+      })
     }
 
     // Nuxt Storybook.

packages/entity/test/components/__snapshots__/DruxtEntity.test.js.snap

@@ -50,7 +50,9 @@ exports[`DruxtEntity missing schema 1`] = `
           <option>DruxtEntityFileFile</option>
           <option>DruxtEntityFile</option>
           <option>DruxtEntityDefault</option>
-        </select></div>
+        </select> <button>
+          Create
+        </button></div>
       <details>
         <summary>JSON:API resource</summary><pre><code>{
   "type": "file--file",