Fix 8177 add action tiddler list to droppable

[pmario]

This PR closes #8177

• 8177

It extends the DroppableWidget with:

• New parameter listActions
• A new action-variable: actionTiddlerList which contains a TitleList instead of a single tiddler title
• It activates the listActions only once

@AnthonyMuscio -- please test the preview

There is a new example No. 3 at: https://tiddlywiki5-git-fork-pmario-fix-8177-14d6a0-jermolenes-projects.vercel.app/#DroppableWidget which can be used for testing

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Name	Status	Preview	Updated (UTC)
tiddlywiki5	✅ Ready (Inspect)	Visit Preview	Jun 12, 2024 1:02pm

[pmario]

There is a new example No. 3 at: https://tiddlywiki5-git-fork-pmario-fix-8177-14d6a0-jermolenes-projects.vercel.app/#DroppableWidget which can be used for testing