[ADF-5417] Support multiple search configuration in app config json (#7096)

* [ACS-1642] Support multiple search configuration in app config json

* [ci:force] unit test added

* adf component added

* [ci:force] check compatibility

* [ci:force] * run all e2e

* * revert initvalue

* [ci:force] revert app config

* [ci:force] docs update

docs/content-services/components/search-form.component.md

@@ -0,0 +1,75 @@
+---
+Title: Search Form component
+Added: v4.5.0
+Status: Active
+Last reviewed: 2021-06-11
+---
+
+# [Search Form component](../../../lib/content-services/src/lib/search/components/search-form/search-form.component.ts "Defined in search-form.component.ts")
+
+Selecting a configuration from a set of configured options.
+
+![Search Form screenshot](../../docassets/images/search-form-component.png)
+
+## Basic usage
+
+```json
+{
+  "search": [
+    {
+      "categories": [
+        {
+          "id": "queryName",
+          "name": "Name",
+          "enabled": true,
+          "expanded": true,
+          "component": {
+            "selector": "text",
+            "settings": {
+              "searchPrefix": "",
+              "searchSuffix": "",
+              "pattern": "cm:name:'(.*?)'",
+              "field": "cm:name",
+              "placeholder": "Enter the name",
+              "allowUpdateOnChange": true
+            }
+          }
+        }
+      ],
+      "name": "ALL",
+      "default": true
+    },
+    {
+      "categories": [
+        {
+          "id": "queryName",
+          "name": "Name",
+          "enabled": true,
+          "expanded": true,
+          "component": {
+            "selector": "text",
+            "settings": {
+              "searchPrefix": "",
+              "searchSuffix": "",
+              "pattern": "cm:name:'(.*?)'",
+              "field": "cm:name",
+              "placeholder": "Enter the name",
+              "allowUpdateOnChange": true
+            }
+          }
+        }
+      ],
+      "name": "Other"
+    }
+  ]
+}
+```
+
+
+## Details
+
+This component lets the user pick a configuration for a search.
+
+## See also
+
+-   [Search Query Builder](../services/search-query-builder.service.md)