Onboarding: New getting started panel (#23826)

* image and card component

* change height of getting started panel

* progress

* setup basic step

* advanced steps

* step forward and backward

* do checks

* fix button size

* minor styling on butttons

* add correct links

* save tutorial click in localstorage

* types and gradients

* fix gradients

* use spacing variable

* lots of responsiveness

* add links to help

* Getting started work

* redo according to split panel design

* minor touch ups

* new background images

* split up docs card to different hrefs

* welcome bar touch ups

* hide icon on small screens

* transparent false on welcome banner

* fix urls

* source tag in welcome urls

* move images to panel dir, removed unused images

* Nicer loading message

* make the cards look nicer on wide screens

* append utm tag on render instead

* replace width with margin

* new background image for light

* remove target on a element

* removing buttonselect, add tag to href

* more polishing

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.com>

pkg/api/dashboard.go

@@ -366,7 +366,7 @@ func addGettingStartedPanelToHomeDashboard(dash *simplejson.Json) {
 			"x": 0,
 			"y": 3,
 			"w": 24,
-			"h": 4,
+			"h": 9,
 		},
 	})