refactor: remove unused width prop for post title field (#7545)

#### What type of PR is this?

/area ui
/kind improvement
/milestone 2.21.x

#### What this PR does / why we need it:

Remove unused width prop for post title field

#### Does this PR introduce a user-facing change?

```release-note
None
```

ui/console-src/modules/contents/posts/DeletedPostList.vue

@@ -317,7 +317,7 @@ watch(
               />
             </template>
             <template #start>
-              <VEntityField :title="post.post.spec.title" width="27rem">
+              <VEntityField :title="post.post.spec.title">
                 <template #description>
                   <div class="flex flex-col gap-1.5">
                     <VSpace class="flex-wrap !gap-y-1">

ui/console-src/modules/contents/posts/components/entity-fields/TitleField.vue

@@ -33,7 +33,6 @@ const externalUrl = computed(() => {
       name: 'PostEditor',
       query: { name: post.post.metadata.name },
     }"
-    width="27rem"
   >
     <template #extra>
       <VSpace>

ui/uc-src/modules/contents/posts/components/PostListItem.vue

@@ -138,7 +138,6 @@ function handleDelete() {
           name: 'PostEditor',
           query: { name: post.post.metadata.name },
         }"
-        width="27rem"
       >
         <template #extra>
           <VSpace class="mt-1 sm:mt-0">