Saved queries must work more like Text Editor

[antonkovalenko]

As a query developer who uses saved queries I expect following behavior from this feature

1. When I have unsaved changes in the query editor, I want them to be indicated in the tab
2. When I activate save command (hot key or a save button) I want to define a name for the query I'm going to save
3. When I click on a query in Saved Queries tab, I want its name to be displayed somewhere in the visible are.
4. When I I activate save command (hot key or a save button) I want editor to save changes to the query I have selected from the saved tab
5. When I edit a query from my saved queries, I want to have an option to save as new and I want it to work as in most text editors.

As long as I want to be similar to my experience with regular editors