PR: Don't show a file in the Editor immediately after it's selected in the switcher.

[juanis2112]

Description of Changes

• Wrote at least one-line docstrings (for any new functions)
• Added unit test(s) covering the changes (if testable)
• Included a screenshot (if affecting the UI)

I implemented an enter function so that users have to press enter to switch files in the file switcher and it does not displays while charging the file with the arrows.

Issue(s) Resolved

Fixes #
Item 8 of #8580

Affirmation

By submitting this Pull Request or typing my (user)name below,
I affirm the Developer Certificate of Origin
with respect to all commits and content included in this PR,
and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct:
Juanis2112

[ccordoba12]

@juanis2112, does this PR preserve the current behavior for the Symbol switcher? I mean, the idea is that after users select a symbol, we show it immediately in the Editor, but not for files.

[juanis2112]

@juanis2112, does this PR preserve the current behavior for the Symbol switcher? I mean, the idea is that after users select a symbol, we show it immediately in the Editor, but not for files.

@ccordoba12 Yes, it preserves the current behavior. It still shows the symbol immediately after selecting it.

[ccordoba12]

@ccordoba12 Yes, it preserves the current behavior.

Great, thanks a lot @juanis2112!

[dalthviz]

Thanks @juanis2112 for the latest changes, I left some comments and please also check that the Symbol switcher functionality is preserved with the changes to handle the click :)

[dalthviz]

Thanks @juanis2112 ! 👍