Fix edit locally action to not appear for folders

[PVince81]

Extends FileActions to also allow the meta "files" mime type.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[PVince81]

hold on, @Pytal just told me that having "Edit locally" for folders is intentional

it would make it possible to open a folder locally

should we keep it ? @jancborchardt

[Pytal]

hold on, @Pytal just told me that having "Edit locally" for folders is intentional

it would make it possible to open a folder locally

Yes, was discussed in the original PR #34171 (comment)

[PVince81]

now thinking, maybe the text should be "Open folder locally" to make it less confusing

[PVince81]

it's not possible to dynamically change the text, so it would require a different approach / hack. closing for now