* Loki: Label browser
- replaces stream cascader widget which made it hard to find relevant streams
- multi-step selection allows for selecting a couple of labels first, then find the relevant values
- supports facetting which makes impossible label combinations hard to choose
* Remove unused label hook
* Remove unused label styles
* Use global time range for metadata requests
* Preselect labels if not many exist
* Status and error messages
* Status fixes
* Remove unused import
* Added logs rate button
* Close popup when clicked outside (not working for timepicker :( )
* Change button label
* Get rid of popup and render browser inline
* Review feedback
* Wrap label values and prevent empty lists
Co-authored-by: Zoltán Bedi <zoltan.bedi@gmail.com>
