improved ux for permission list

ux: sizing and positioning of dashboard settings menu icons

Revert "build: remove code cov"

Revert "removes codecov from frontend tests"

fix unconvert issues

bra should use the proper build script

In addition to closing #11578

[skip ci]

tsdb: improve $__timeFilter macro for postgres

* migrated dropdown-typeahead to ts

* removed console.logs

* added @ngInject

ordered user orgs alphabeticaly 

Support deleting empty playlist

Show Grafana version and build in Help menu

* `bra run` is used during development, but it was not using build.go
which sets a couple of globals, e.g., the commit (currently set to "NA")
* This will help in reporting the commit that someone is basing their
screenshot on.

* establishes Help as the single place to look for the Grafana version
* version is passed as menu sub-title to side menu
* added rendering of sub-title, plus styles
* sub-title was used by profile menu (its value is the login string),
but was not shown; now showing this value on condition that login name
is different from user name

#11053, #11252, #10836, #11185, #11168, #11332, #11391, #11073, #9342, #11001, #11183, #11211, #11384, #11095, #10792, #11138, 
#11516
[skip ci]