When user presses Return with the cursor in the middle of a task line, move cursor to end of line instead of dividing line in two

[claremacrae]

⚠️ Please check that this feature request hasn't been suggested before.

• I searched previous Ideas in Discussions didn't find any similar feature requests.
• I searched previous Issues didn't find any similar feature requests.
• I am only requesting a single feature. Multiple changes should be split into individual requests, with links between them.
• I believe my requested feature will be generally applicable to other users, not just me: it is not uniquely tied to my personal workflow.

🔖 Feature description

Suppose I have been editing a task line, such as this one:

- [ ] I am a task with some emojis ⏫ 🔁 every day ➕ 2024-05-29 🛫 2024-05-28 📅 2024-05-29

And so my cursor is some in the line, say before emojis

If I press , the result is that the one task is broken in to two:

- [ ] I am a task with some 
- [ ] emojis ⏫ 🔁 every day ➕ 2024-05-29 🛫 2024-05-28 📅 2024-05-29

✔️ Solution

A much more useful result would be this, with the cursor at the end of the second task line

- [ ] I am a task with some emojis ⏫ 🔁 every day ➕ 2024-05-29 🛫 2024-05-28 📅 2024-05-29
- [ ] 

It would ideally need to work in both Source Mode and Live Preview.

❓ Alternatives

Currently the user has to know to move the cursor to the end of an existing task line before pressing Return.

📝 Additional Context

This was a suggestion originally made by @hmijail - embedded within #2786 (comment)

And which I formatted and summarised in #2786 (comment):

Quoting and reformatting:

To fix this, the just-finished line should keep the creation date. Maybe the plugin could detect on an Enter press that the caret is:

1. in a task line and
2. there's only emoji+dates after the caret,

and then move to the next line without dragging them on.

That is a very good idea, and I don't recall it being made before - and it will get lost here, and is not specific to Creation date.

A separate feature request, with a thorough description, would be very welcome.