title edit followup fixes

[kfarr]

Task: use system "prompt" dialog for editing title

Background:

• there are console errors related to the original PR that was merged
• there are also many usability issues with the custom styling of the new input widget used to edit title in the editor view [see below List1 - FYI only]

Instead of continuing to address these issues, I'd request instead the following behavior change:

• Upon click, use javascript prompt with default text as the current title to allow for editing of the title. If the user presses OK without editing, then do not change the title. If the value is different than the default provided, then update the title.
• The non-hover and hover behavior is the same, only click action is different

List1 - FYI only do not do these - issues with custom input widget for future development

• pressing x on edit title should cancel edits, not set title to ''
• as a user, after hovering and then clicking on a title I expect the title to be selected
• pressing pencil icon on a scene with a blank title should start a cursor blinking at the beginning of the input box

[kfarr]

closed by #319