* feat: extend to support a selector attribute identifying the DOM element to be used as the drag handle
* fix: remove redundant variable declaration
* fix: remove extranneous variable declaration
* fix: issues with drag and drop (false positives in detection for files being dropped) introduced by Chrome 96
* fix: call dragEventContainsType method more consistently.
* fix: call dragEventContainsType method more consistently.
* Merge
* Clean up
* More clean up
* Ensure image import works when type is not set, clean up post import actions
* Removed spurious new line
* For non image files insert a tiddler link
* Added documentation for new settings and features
These changes allow drag and drop to work with one issue: <a> links are
not draggable; draggable divs, spans, buttons etc. seem to work fine.
There’s some issue with IE11 that I don’t understand.
For testing, you can force links to become spans by changing line 64 of
$:/core/modules/widgets/link.js to:
var domNode = this.document.createElement("span");
