Update / modernize the UI

On the other hand it would be nice if the developers would focus more on the UI functionality that the visuals. Currently we have seen transition to new visual representation at the expense of functionality, readability and performance.

For example:
* Defect lits view does not allow for release tree to be be permanently visible
* Edit screens make it almost imposible to read the links
* Interactive icons are displayed over the item name you acctually pointing at

* etc.