Remove all internal usage of the Json types

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/search-common/api-report.md

@@ -3,7 +3,7 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
-import { JsonObject } from '@backstage/config';
+import { JsonObject } from '@backstage/types';
 
 // Warning: (ae-missing-release-tag) "DocumentCollator" is exported by the package, but it is missing a release tag (@alpha, @beta, @public, or @internal)
 //

packages/search-common/package.json

@@ -36,7 +36,7 @@
     "url": "https://github.com/backstage/backstage/issues"
   },
   "dependencies": {
-    "@backstage/config": "^0.1.6"
+    "@backstage/types": "^0.1.1"
   },
   "devDependencies": {
     "@backstage/cli": "^0.8.0"

packages/search-common/src/types.ts

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import { JsonObject } from '@backstage/config';
+import { JsonObject } from '@backstage/types';
 
 export interface SearchQuery {
   term: string;