Actions in Navigation
As a user I want to use actions for the current view and entity from the navigation. Placing them in the navigations allows me to access actions from the same place on the UI disregarding my viewport.
Acceptance tests
- actions specific to the current view (i. e. "Create new Story" in the Product Backlog) appear as icons in the navigation
- actions specific to the currently selected entity (i. e. "Convert to Story" when an Issue is selected) appear in the navigation below the actions specific to the view
- placing the mouse over an action icon displays it's name and description
- the UI does not jump when action icons change (because the view is changed or another entity is selected)