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/components/+workloads/workloads.tsx

@@ -6,7 +6,7 @@ import { Trans } from "@lingui/macro";
 import { TabLayout, TabLayoutRoute } from "../layout/tab-layout";
 import { WorkloadsOverview } from "../+workloads-overview/overview";
 import { cronJobsRoute, cronJobsURL, daemonSetsRoute, daemonSetsURL, deploymentsRoute, deploymentsURL, jobsRoute, jobsURL, overviewRoute, overviewURL, podsRoute, podsURL, replicaSetsRoute, replicaSetsURL, statefulSetsRoute, statefulSetsURL } from "./workloads.route";
-import { namespaceStore } from "../+namespaces/namespace.store";
+import { namespaceUrlParam } from "../+namespaces/namespace.store";
 import { Pods } from "../+workloads-pods";
 import { Deployments } from "../+workloads-deployments";
 import { DaemonSets } from "../+workloads-daemonsets";
@@ -19,7 +19,7 @@ import { ReplicaSets } from "../+workloads-replicasets";
 @observer
 export class Workloads extends React.Component {
   static get tabRoutes(): TabLayoutRoute[] {
-    const query = namespaceStore.getContextParams();
+    const query = namespaceUrlParam.toObjectParam();
     const routes: TabLayoutRoute[] = [
       {
         title: <Trans>Overview</Trans>,