feat: add new default XML file without input (#114)

ui/src/main/resources/splunk/default/data/ui/nav/default_no_input.xml

@@ -0,0 +1,20 @@
+<!--
+  ~ Copyright 2021 Splunk Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~ http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+-->
+<nav>
+    <view name="configuration" default="true" />
+    <view name="search" />
+</nav>