PolyGerrit: Fix create project dialog to use <span class="value">

Reason is because gr-autocomplete was going out of place when typing.
Using the span class value fixed this.

Bug: Issue 6951
Change-Id: I12c16e7eec45003868b3445ad092439c96135d8d

polygerrit-ui/app/elements/admin/gr-create-project-dialog/gr-create-project-dialog.html

@@ -60,12 +60,14 @@ limitations under the License.
         </section>
         <section>
           <span class="title">Rights inherit from</span>
-          <gr-autocomplete
-              id="rightsInheritFromInput"
-              text="{{_projectConfig.parent}}"
-              query="[[_query]]"
-              placeholder="Optional, defaults to 'All-Projects'">
-          </gr-autocomplete>
+          <span class="value">
+            <gr-autocomplete
+                id="rightsInheritFromInput"
+                text="{{_projectConfig.parent}}"
+                query="[[_query]]"
+                placeholder="Optional, defaults to 'All-Projects'">
+            </gr-autocomplete>
+          </span>
         </section>
         <section>
           <span class="title">Create initial empty commit</span>