Add data attribute support to button and other widgets (#7769)

* Add data attribute support to button widget

* Fix typo

* Refactor ready for making mechanism more generic

* Apply more generic implementation to multiplate widgets

* Refactor to use existing widget.assignAttributes() method

* Fix typo

* Clarify docs

* Update docs

* Update select widget to support style.* attributes

* Remove obsolete comment

* Fixes refresh issues for checkbox and links widgets for data attributes (#7846)

* fix: refresh issues with checkbox and links widgets

* fix: indenting

* Feat: add support for data attributes to Draggable and Droppable widgets (#7845)

* Docs clarification

* docs: add style and data attributes to Draggable and Droppable widget docs (#7850)

* Refactors Select widget to directly create DOM node (#7848)

* fix: refactored SelectWidget to directly create DOM nodes

* fix: refactored SelectWidget to directly create DOM nodes

* fix: improve refresh handling for select widget

* Fixes issues in the PR "Button widget data attributes" (#7852)

* fix: fixed ordered attributes handling and improved tests to catch event attributes

* fix: clean up code from testing

* fix: more tests and refactoring

* fix: use lowercase when checking for event attribute prefix

* fix: use lowercase when checking for event attribute prefix

* fix: changed comment wording

* fix: minor refactoring

* refactor: for brevity

---------

Co-authored-by: Saq Imtiaz <saq.imtiaz@gmail.com>

editions/test/tiddlers/tests/data/widgets/DataAttributes/DraggableWidget-DataAttributes.tid

@@ -0,0 +1,27 @@
+title: Widgets/DataAttributes/DraggableWidget
+description: Data Attributes for DraggableWidget
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+<$draggable tag="div" class="myclass" data-title="mytiddler" style.color="red" onclick="clicked">
+my tiddler
+</$draggable>
+<$draggable tag="div" class="myclass" data-title={{Temp}} style.color={{{ [[Temp]get[color]] }}}>
+hello
+</$draggable>
++
+title: Actions
+
+<$action-setfield $tiddler="Temp" $field="text" $value="Title2" color="red"/>
++
+title: Temp
+color: black
+
+Title1
++
+title: ExpectedResult
+
+<p><div class="myclass tc-draggable" data-title="mytiddler" draggable="true" style="color:red;">my tiddler</div><div class="myclass tc-draggable" data-title="Title2" draggable="true" style="color:red;">hello</div></p>