Allow vector widget only on vector expressions.

[Frizi]

Pull Request Description

Fixes #9593

Important Notes

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• The documentation has been updated, if necessary.
• Screenshots/screencasts have been attached, if there are any visual changes. For interactive or animated visual changes, a screencast is preferred.
• All code follows the
  Scala,
  Java,
  and
  Rust
  style guides. In case you are using a language not listed above, follow the Rust style guide.
• All code has been tested:
  • Unit tests have been written where possible.
  • If GUI codebase was changed, the GUI was tested when built using ./run ide build.

[vitvakatu]

Didn’t check if it fixes the issue yet

[Frizi]

I did check the described bug scenario, screenshot added.

[enso-bot]

Paweł Grabarz reports a new STANDUP for yesterday (2024-04-02):

Progress: Fixed vector widget assignment, debugging session on GUI startup through dashboard, demo. It should be finished by 2024-04-02.