* Replace spy panels by Inspector (#16387)
* Add Inspector feature
* So long, and thanks for all the fish, spy panel
* Fix several functional tests
* Fix unit tests
* Fix spy panel button tests
* Replace old spy panel documentation
* Disable test temporarily until we have dashboard triggers
* Enter edit mode for dark theme test
* Fix some more functional tests
* Fix more functional tests
* More test fixing
* Fix more functional tests
* Allow opening the inspector via loader handler
* Refactor InspectorViewChooser, remove unused CSS
* Remove dead code
* Fix data download button style
* Remove redundant code
* Load inspectorViews for dashboard_viewer
* Extract inspector views to custom core_plugin
* Switch API to TypeScript 🎉
* Design changes
* Remove icons from views
* Design changes
* Improve typings of API
* Add typing to all adapters
* Show loading spinner in request selector
* Rewrite InspectorView to TypeScript
* Fix help text for data view
* Remove deprecated React lifecycle methods
* Embed inspector into dashboard panel actions
* Remove temporary inspector trigger
* Remove old CSS
* Fix dashboard trigger for new panel action
* Add tests for InspectorPanel and DataAdapter
* Produce a hierarchical table if the vis is hierarchical
* Remove allowJs option again
* Add missing Apache license headers
* Close inspector on dashboard when navigating away
* Use proper title for dashboard panels
* Fix functional tests
* Skip broken test for now
* Flush view chooser button
* Add request adapter tests
* Skip more tests, broken due to typescript
* Add Request Time description
* Add description for courier request
* Fix tests
* Replace icon by new (not yet released) icon
* Finalize design of inspector
* Remove discover test, that relied on spy panels
* Change API to be properly mockable in tests
* Add aria-live region for request status
* Replace old method in functional tests
* Replace abitrary magic number
* Use object destructuring in vis
* Fix issue with crashing requests view
* Add request time tooltip
* Get request body of correct search source
* Make filter buttons properly keyboard accessible
* Follow Dave's design suggestions
* Remove redundant request from name
* Remove unneeded comments
* WIP raw-formatted values
* Fix filtering issue
* Fix tests and more license headers
* Add data view tests
* Remove search from table
* Fix typos
* Implement review suggestion
* Remove artificial delays for testing
* Fix new panel action structure
* Minor design adjustments
* Fix failing functional test
* Update failing snapshot test
* Implement final wording
* Apply new EUI styling
* Fix closing inspector in tests
* Fix sorting of table
* Align punctuation between tooltips
* Fix test that doesn't exist on master
* Fix one inspector test (#20072)
* Remove file that came accidentally back due to merging
* Fix accidental merge paste
* Fix 6.4 test failures
