* WIP: initial panel links editor

* WIP: Added dashboard migration to new panel drilldown link schema

* Make link_srv interpolate new variables

* Fix failing tests

* Drilldown: Add context menu to graph viz (#17284)

* Add simple context menu for adding graph annotations and showing drilldown links

* Close graph context menu when user start scrolling

* Move context menu component to grafana/ui

* Make graph context menu appear on click, use cmd/ctrl click for quick annotations

* Move graph context menu controller to separate file

* Drilldown: datapoint variables interpolation (#17328)

* Add simple context menu for adding graph annotations and showing drilldown links

* Close graph context menu when user start scrolling

* Move context menu component to grafana/ui

* Make graph context menu appear on click, use cmd/ctrl click for quick annotations

* Add util for absolute time range transformation

* Add series name and datapoint timestamp interpolation

* Rename drilldown link variables tot snake case, use const values instead of strings in tests

* Bring LinkSrv.getPanelLinkAnchorInfo for compatibility reasons and add deprecation warning

* Rename seriesLabel to seriesName

* Drilldown: use separate editors for panel and series links (#17355)

* Use correct target ini context menu links

* Rename PanelLinksEditor to DrilldownLinksEditor and mote it to grafana/ui

* Expose DrilldownLinksEditor as an angular directive

* Enable visualization specifix drilldown links

* Props interfaces rename

* Drilldown: Add variables suggestion and syntax highlighting for drilldown link editor (#17391)

* Add variables suggestion in drilldown link editor

* Enable prism

* Fix backspace not working

* Move slate value helpers to grafana/ui

* Add syntax higlighting for links input

* Rename drilldown link components to data links

* Add template variabe suggestions

* Bugfix

* Fix regexp not working in Firefox

* Display correct links in panel header corner

* bugfix

* bugfix

* Bugfix

* Context menu UI tweaks

* Use data link terminology instead of drilldown

* DataLinks: changed autocomplete syntax

* Use singular form for data link

* Use the same syntax higlighting for built-in and template variables in data links editor

* UI improvements to context menu

* UI review tweaks

* Tweak layout of data link editor

* Fix vertical spacing

* Remove data link header in context menu

* Remove pointer cursor from series label in context menu

* Fix variable selection on click

* DataLinks: migrations for old links

* Update docs about data links

* Use value time instead of time range when interpolating datapoint timestamp

* Remove not used util

* Update docs

* Moved icon a bit more down

* Interpolate value ts only when using __value_time variable

* Bring href property back to LinkModel

* Add any type annotations

* Fix TS error on slate's Value type

* minor changes