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/user/dashboard/dashboard.tmpl

@@ -5,6 +5,11 @@
 		{{template "base/alert" .}}
 		<div class="ui mobile reversed stackable grid">
 			<div class="ten wide column">
+				{{if .EnableHeatmap}}
+					<div class="ui active centered inline indeterminate text loader" id="loading-heatmap">{{.i18n.Tr "user.heatmap.loading"}}</div>
+					<div id="user-heatmap"></div>
+					<div class="ui divider"></div>
+				{{end}}
 				{{template "user/dashboard/feeds" .}}
 			</div>
 			<div id="app" class="six wide column">