NestedFolders: Show nested folders in Browse folder view (#63746)

* dirty dirty code for showing nested folders in folder view

refactor to NestedFolderItem

Update dashboard grid view to new types

update tests

REBASE OUT OF THIS BRANCH - joshhunt/star-by-uid merged into this

Squashed commit of the following:

commit d0f046ccd3
Author: joshhunt <josh@trtr.co>
Date:   Wed Feb 8 18:35:56 2023 +0000

    undo async

commit abe2777a1f
Author: joshhunt <josh@trtr.co>
Date:   Wed Feb 8 18:34:11 2023 +0000

    Dashboards: Star dashboards by UID

add type for dashboard search dto

clean DashboardSearchItem type

simplify DashboardSearchHit type

remove unused properties from DashboardSearchHit

make uid non-optional

rename + move NestedFolderItem type to DashboardViewItem

clean up

* wip

* fix checkbox selection of nested folders

* show folder's parent correctly

* Add dashboard result kind

* don't render folder empty view in SearchView

* call nested folders api only if feature flag enabled

* remove unused import

* un-rename variable to reduce PR diff

* fix typo in comment

* fix order of pseudoFolders

* Fix General folder not showing in browse

* rename folder view tests

---------

Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>

public/locales/es-ES/grafana.json

@@ -9,8 +9,7 @@
     "action": {
       "change-theme": "",
       "dark-theme": "",
-      "light-theme": "",
-      "search": ""
+      "light-theme": ""
     },
     "search-box": {
       "placeholder": ""
@@ -84,7 +83,6 @@
     },
     "toolbar": {
       "add-panel": "Añadir panel",
-      "comments-show": "Mostrar comentarios del panel de control",
       "mark-favorite": "Marcar como favorito",
       "open-original": "Abrir el panel de control original",
       "playlist-next": "Ir al siguiente panel de control",
@@ -292,7 +290,6 @@
       "title": "Escenas"
     },
     "search": {
-      "placeholder": "Buscar Grafana",
       "placeholderCommandPalette": ""
     },
     "search-dashboards": {
@@ -415,6 +412,11 @@
       "go-to-folder": "",
       "select-folder": ""
     },
+    "result-kind": {
+      "dashboard": "",
+      "folder": "",
+      "panel": ""
+    },
     "results-table": {
       "datasource-header": "",
       "location-header": "",