UX improvements for click handling on validator bugs

[Harry Wood]

On the list of bugs shown in the validator. The user experience could be improved.

Left click relates to the selection in the list. It sometimes means 'fix' is available and permits multiple selections. That's fine.

Double-click selects the object in the map editing panel (same action as the 'select' button beneath) but you may not necessarily be able to see element it currently.

Right click gives you a context menu with one option 'zoom to problem' but you may not have the problem highlighted or selected

Improvements:

1) Double click should both select the element and zoom to it.

2) Right-click -> 'zoom to problem' should also select the element as well as zooming to it (same action) Likewise the 'select' button in the panel could wired into the same action

3) Right click should either act upon all multi-selected items in the list, or act on the item you right clicked on (as it does currently) In the latter case, to make this clearer, it should clear any current list selection and select the list entry you right-clicked on.

4) Right click context menu might as well list other actions (providing an alternate way to achieve the same thing) such as 'fix' and 'ignore'