fix(src): remove extension

Author: ThornWalli

src/ContentContainer.vue

@@ -18,7 +18,7 @@
 
 <script>
 import { inject } from 'vue';
-import useContentContainer from './useContentContainer.js';
+import useContentContainer from './useContentContainer';
 
 export default {
   inheritAttrs: false,

src/ContentHeadline.vue

@@ -6,7 +6,7 @@
 </template>
 
 <script>
-import useContentHeadline from './useContentHeadline.js';
+import useContentHeadline from './useContentHeadline';
 
 export default {
   inheritAttrs: false,