Datagrid Panel: Edit data within your dashboards (#66353)

* wip

* Datagrid WIP: snapshotting when data edited, better UI for adding column/rows, refactors

* wip

* WIP

* wip

* Add series selector

* Delete selection on key press

* wip

* Multiple row select and delete

* wip

* draggable rows/columns, better column width calculator

* bug fixes

* scrollbars

* add feature flag

* bugfixes

* bugfixes

* bugfixes

* bugfixes

* Add possibility to rename column

* Input fixes

* bugfixes

* bugfixes

* performance optimisations

* WIP component refactoring and optimisations

* comment bit of code to remove error for testing

* fix column move and payload types

* WIP refactors and tests

* e2e tests

* queryGroup subscription refactor

* queryGroup - add component on update, fix failing tests

* refactor querygroup

* querygroup refactor

* tests

* fix codeowners validation

* lint fixes

* revert convertFieldType modification in favor of already merged mod + re-add mistakenly deleted line

* remove //ts-ignores

* Minor style tweaks

* fix

* align colors with theme

* fixes

* refactor

* add test for convertFieldType transformer and write todo

---------

Co-authored-by: Torkel Ödegaard <torkel@grafana.com>

devenv/jsonnet/dev-dashboards.libsonnet

@@ -163,6 +163,13 @@ local dashboard = grafana.dashboard;
         id: 0,
       }
     },
+    dashboard.new('datagrid_metric_values', import '../dev-dashboards/panel-datagrid/datagrid_metric_values.json') +
+    resource.addMetadata('folder', 'dev-dashboards') +
+    {
+      spec+: {
+        id: 0,
+      }
+    },
     dashboard.new('demo1', import '../dev-dashboards/datasource-testdata/demo1.json') +
     resource.addMetadata('folder', 'dev-dashboards') +
     {