Navigation refactoring, handling extension page params (#1651)

* decentralizing page url-params management -- PoC / tsc 4.1 random fixes

Signed-off-by: Roman <ixrock@gmail.com>

* fixes, tweak example-extension for demo

Signed-off-by: Roman <ixrock@gmail.com>

* lint fixes, revert tests

Signed-off-by: Roman <ixrock@gmail.com>

* removed occasional changes related to typescript 4.1

Signed-off-by: Roman <ixrock@gmail.com>

* updated example with 2 menu-items targeting same page with different params

Signed-off-by: Roman <ixrock@gmail.com>

* fix: merge page url chunks with native URL()-api, simplified default page-params registration

Signed-off-by: Roman <ixrock@gmail.com>

* fix: make lint happy

Signed-off-by: Roman <ixrock@gmail.com>

* fix: unit-tests

Signed-off-by: Roman <ixrock@gmail.com>

* renaming by jim's request: UrlParam => PageParam (type), createUrlParam => createPageParam (helper)

Signed-off-by: Roman <ixrock@gmail.com>

* fix: reverting NamespaceStore public-api breaking changes

Signed-off-by: Roman <ixrock@gmail.com>

* lint fix

Signed-off-by: Roman <ixrock@gmail.com>

* fine-tuning

Signed-off-by: Roman <ixrock@gmail.com>

* yes, lint always unhappy

Signed-off-by: Roman <ixrock@gmail.com>

* fix build

Signed-off-by: Roman <ixrock@gmail.com>

* small fixes

Signed-off-by: Roman <ixrock@gmail.com>

* fix merge-conflicts

Signed-off-by: Roman <ixrock@gmail.com>

* removed `isSystem` page-param's init field exposed to extensions-api

Signed-off-by: Roman <ixrock@gmail.com>

src/renderer/api/api-manager.ts

@@ -50,8 +50,8 @@ export class ApiManager {
     });
   }
 
-  getStore(api: string | KubeApi): KubeObjectStore {
-    return this.stores.get(this.resolveApi(api));
+  getStore<S extends KubeObjectStore>(api: string | KubeApi): S {
+    return this.stores.get(this.resolveApi(api)) as S;
   }
 }