Docs: Organize basic concepts and getting started (#21859)

* Update shortcuts.md

Removed content that was out-of-date and redundant with the UI.

* Added panels.md

* Added dashboards.md

* Added data-sources.md

* Update data-sources.md

* Sorted basic concepts into other topics

* Update docs/sources/menu.yaml

Co-Authored-By: Marcus Olsson <accounts+github@marcus.se.net>

* Update panels.md

* Update data-sources.md

Co-authored-by: Marcus Olsson <accounts+github@marcus.se.net>

docs/sources/features/shortcuts.md

@@ -1,5 +1,5 @@
 +++
-title = "Keyboard Shortcuts"
+title = "Keyboard shortcuts"
 type = "docs"
 [menu.docs]
 parent = "features"
@@ -8,46 +8,11 @@ weight = 7
 
 # Keyboard shortcuts
 
-{{< docs-imagebox img="/img/docs/v50/shortcuts.png" max-width="20rem" class="docs-image--right" >}}
+Grafana has a number of keyboard shortcuts available. Press Shift + `?` on your keyboard to display all keyboard shortcuts available in your version of Grafana.
 
-Grafana v4 introduces a number of really powerful keyboard shortcuts. You can now focus a panel
-by hovering over it with your mouse. With a panel focused you can simple hit `e` to toggle panel
-edit mode, or `v` to toggle fullscreen mode. `p` `r` removes the panel. `p` `s` opens share
-modal.
+**Popular shortcuts:**
 
-Hit `?` on your keyboard to open the shortcuts help modal.
-
-### Global
-
-- `g` `h`	Go to Home Dashboard
-- `g` `p`	Go to Profile
-- `s` `o`	Open search
-- `s` `s`	Open search with starred filter
-- `s` `t`	Open search in tags view
-- `esc`	Exit edit/setting views
-
-### Dashboard
-
-- `mod+s`	Save dashboard
-- `mod+h`	Hide row controls
-- `d` `r`	Refresh all panels
-- `d` `s`	Dashboard settings
-- `d` `v`	Toggle in-active / view mode
-- `d` `k`	Toggle kiosk mode (hides top nav)
-- `d` `E`	Expand all rows
-- `d` `C`	Collapse all rows
-- `mod+o`	Toggle shared graph crosshair
-
-### Focused Panel
-- `e`	Toggle panel edit view
-- `v`	Toggle panel fullscreen view
-- `p` `s` Open Panel Share Modal
-- `p` `d` Duplicate Panel
-- `p` `r` Remove Panel
-
-### Time Range
-- `t` `z`	Zoom out time range
-- `t`	Move time range back
-- `t`	Move time range forward
-
-mod = Ctrl on Windows or Linux and Cmd key on macOS
+* Ctrl+S saves the current dashboard.
+* Ctrl+F opens the dashboard finder / search.
+* Ctrl+H hides all controls (good for tv displays).
+* Press Escape to exit graph when in fullscreen or edit mode.