User action heatmap (#5131)

* Added basic heatmap data

* Added extra case for sqlite

* Built basic heatmap into user profile

* Get contribution data from api & styling

* Fixed lint & added extra group by statements for all database types

* generated swagger spec

* generated swagger spec

* generated swagger spec

* fixed swagger spec

* fmt

* Added tests

* Added setting to enable/disable user heatmap

* Added locale for loading text

* Removed UseTiDB

* Updated librejs & moment.js

* Fixed import order

* Fixed heatmap in postgresql

* Update docs/content/doc/advanced/config-cheat-sheet.en-us.md

Co-Authored-By: kolaente <konrad@kola-entertainments.de>

* Added copyright header

* Fixed a bug to show the heatmap for the actual user instead of the currently logged in

* Added integration test for heatmaps

* Added a heatmap on the dashboard

* Fixed timestamp parsing

* Hide heatmap on mobile

* optimized postgresql group by query

* Improved sqlite group by statement

templates/base/head.tmpl

@@ -100,6 +100,9 @@
 {{end}}
 {{if .RequireDropzone}}
 	<link rel="stylesheet" href="{{AppSubUrl}}/vendor/plugins/dropzone/dropzone.css">
+{{end}}
+{{if .EnableHeatmap}}
+	<link rel="stylesheet" href="{{AppSubUrl}}/vendor/plugins/calendar-heatmap/calendar-heatmap.css">
 {{end}}
 	<style class="list-search-style"></style>