Command Palette Scaffolding + Explore (#47445)

* Add feature flag and scaffodling

* start adding actions

* WIP

* move action files

* Start adding styles

* Fix implementation based on feedback

* Add more hackathon code back to command palette

* Cleanup

* Cleanup unused service files for simple MVP pass

* Move type def to library

* WIP

* Move provider to proper place to pick up other routes’ actions

* Build actions off navbar, add explore actions

* Work around undefined typescript stuff

* Fix based on feedback

* close palette on ESC

* Fix based on PR feedback pt 1

* Move styles to classes

* Move another inline style to a class

* Enable command palette by default

* change around async hook structure

* Add simple feature tracking

* Code cleanup, and be sure the command is accurate

* Change to only render if there are actions, and only add actions once past login

package.json

@@ -319,6 +319,7 @@
     "js-yaml": "^4.1.0",
     "json-source-map": "0.6.1",
     "jsurl": "^0.1.5",
+    "kbar": "^0.1.0-beta.30",
     "lezer-promql": "0.22.0",
     "lodash": "4.17.21",
     "logfmt": "^1.3.2",