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/+cluster/cluster-issues.tsx

@@ -10,11 +10,11 @@ import { Table, TableCell, TableHead, TableRow } from "../table";
 import { nodesStore } from "../+nodes/nodes.store";
 import { eventStore } from "../+events/event.store";
 import { autobind, cssNames, prevDefault } from "../../utils";
-import { getSelectedDetails, showDetails } from "../../navigation";
 import { ItemObject } from "../../item.store";
 import { Spinner } from "../spinner";
 import { themeStore } from "../../theme.store";
 import { lookupApiLink } from "../../api/kube-api";
+import { kubeSelectedUrlParam, showDetails } from "../kube-object";
 
 interface Props {
   className?: string;
@@ -85,7 +85,7 @@ export class ClusterIssues extends React.Component<Props> {
       <TableRow
         key={getId()}
         sortItem={warning}
-        selected={selfLink === getSelectedDetails()}
+        selected={selfLink === kubeSelectedUrlParam.get()}
         onClick={prevDefault(() => showDetails(selfLink))}
       >
         <TableCell className="message">