Fixed: prevent newline on Enter in property rename

[Devesh0129]

No description provided.

[Logende]

The bug seems to still exist.

I have tried this branch and got this result after pressing enter after the name when editing the property name:

[Logende]

Still the same issue for me:

When initiating the edit of a property name, clicking on its very last character to have the cursor behind the last character and then pressing enter, newline is created instead of an edit confirmation. @Kenichi-Endo do you notice any difference in the behavior or not? You had originally reported the issue.

[Kenichi-Endo]

@Logende I see the same issue on https://metaconfigurator.github.io/meta-configurator/schema.
When the tree is closed and I type enter after renaming, new line is added without confirming the rename.

When the tree is open, new line is added confirming the rename.
When the cursor is in the middle of the name, a space is added confirming the rename.

It would be nice if Enter only confirms the rename without changing the name.