* Introduce Echo for collecting frontend metrics

* Update public/app/core/services/echo/Echo.ts

Co-Authored-By: Peter Holmberg <peterholmberg@users.noreply.github.com>

* Custom meta when adding event

* Rename consumer to backend

* Remove buffer from Echo

* Minor tweaks

* Update package.json

* Update public/app/app.ts

* Update public/app/app.ts

* Collect paint metrics when collecting tti. Remove echoBackendFactory

* Update yarn.lock

* Move Echo interfaces to runtime

* progress on meta and echo

* Collect meta analytics events

* Move MetaanalyticsBackend to enterprise repo

* Fixed unit tests

* Removed unused type from test

* Fixed issues with chunk loading (reverted index-template changes)

* Restored changes

* Fixed webpack prod

* initial changes - removal from state, remove anon functions, reset secrets empty

* post testing cleanup

* init promise cancellation, other cleanup

* workspaces response parser, remove version incrementing

* update datasource funcs - DRYer

* remove prop mutation

* func to modify root config opt

* fix version issue

* update snapshot

* Use data frames when procesing annotation query in graphite ds

* Remove destruct

* Stop parsing 'field'

* Remove time field from query for docs queries

* Test refactor to test all versions

* Fix tests

* add GitHub action to sync docs with website repo

* remove trigger-docs-update from circleci jobs

* update access token

* FieldDisplay: added support for value mapping of no data state.

 Committer: Marcus Andersson <marcus.andersson@grafana.com>

* FieldDisplay: fixed issue when switching between modes and display numeric was null.

* ValueMapping: introduced a private function for checking null values.

* FieldDisplay: refactoring of test setup to reduce duplication.

* Docs: added info about new 'no data' value to text mapping.

* Docs: improved according to feedback. Reverted prettier formatting changes.

* FieldDisplay: removed unused import.

* Use SelectableValue for segment value

* Update cloudwatch components to use new segment props

* Datasource/Loki: Fixes issue where time range wasn't being supplied with annotation query
Closes #20667

* Add test to verify new behavior

* Added end/start check to test

Server API: Return 404 when non-pending invite is requested

Return error and aborts when plugin file extraction fails.
If file is in use, a somewhat user-friendly message is returned.

Fixes #20841

Unifies loki autocomplete so behavior isn't different
across explore modes.
Closes #20769

* update fixed

* update fixed

* update fixed

* don't change any tests

* add mising space

* Custom unit formats

* return a string for kbn

* return a string for kbn

* return a string for kbn

* Simplify unit tests

* More units

* fix more tests

* fix more tests

* fix more tests

* format values

* format values

* TimeSeries to string

* more kbn tests

* use the formatted value

* BarGauge: Fixed font size calculations

* support prefix

* add si support

* avoid npe

* BarGauge/BigValue: value formatting

* fix some tests

* fix tests

* remove displayDateFormat

* another unicode char

* Graph: Use react unit picker

* Updated unit picker

* Fixed build errors

* more formatting

* graph2 tooltip formatting

* optional chaining

* Migration: Migrate org switcher to react

* Improve modal overflow behavior

* Updated modal backdrop

* Renamed type

* Modal: Refactoring and reducing duplication

Deleted file and removed link

* Update requirements.md

Thoroughly read through and edited requirements.md

* Update requirements.md

Changed line 41 to Grafana data source proxy

* support alert tags in OpsGenie notifier

* update readme: OpsGenie alert tags support

* lintfix: remove redundant string formatting

* introduce checkbox theme variables

* Add checkbox component

* Style tweaks

* Namespace form styles returned from getFormStyles

* Name fix

* TablePanel: Don't include hidden columns in CSV export

Fixes #12076

* GraphPanel: Don't include hidden series in CSV export

Series are hidden if all values are zero/empty and the relevant graph
option is enabled as well. (e.g. "Hide series: With only nulls")

Fixes #12076

There is security risk of SSRF if Grafana is running on EC2.

#20508

Updated the word usage in the documentation style guide with checkout and check out.

* Profile: Remove sign-out tab

* Fixed formatting

* Updated formatting