Fix template problems with gr-documentation-search

Change-Id: I907b146b2ae16f970346ee74e7a6d30044b79e41
diff --git a/polygerrit-ui/app/BUILD b/polygerrit-ui/app/BUILD
index 6f1fea7..b4860e8 100644
--- a/polygerrit-ui/app/BUILD
+++ b/polygerrit-ui/app/BUILD
@@ -118,7 +118,6 @@
     "elements/diff/gr-diff-view/gr-diff-view_html.ts",
     "elements/diff/gr-diff/gr-diff_html.ts",
     "elements/diff/gr-patch-range-select/gr-patch-range-select_html.ts",
-    "elements/documentation/gr-documentation-search/gr-documentation-search_html.ts",
     "elements/gr-app-element_html.ts",
     "elements/settings/gr-cla-view/gr-cla-view_html.ts",
     "elements/settings/gr-edit-preferences/gr-edit-preferences_html.ts",
diff --git a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search.ts b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search.ts
index 7e4edd6..f125bfa 100644
--- a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search.ts
+++ b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search.ts
@@ -48,7 +48,7 @@
   _loading = true;
 
   @property({type: String})
-  _filter = '';
+  _filter?: string;
 
   private readonly restApiService = appContext.restApiService;
 
diff --git a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_html.ts b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_html.ts
index dd1faeb..95ce1ec 100644
--- a/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_html.ts
+++ b/polygerrit-ui/app/elements/documentation/gr-documentation-search/gr-documentation-search_html.ts
@@ -25,7 +25,6 @@
   </style>
   <gr-list-view
     filter="[[_filter]]"
-    items="false"
     offset="0"
     loading="[[_loading]]"
     path="/Documentation"