allow filtering of interfaces in the gui by 802.1Q Mode

[ITJamie]

NetBox version

v4.2.5

Feature type

Change to existing functionality

Proposed functionality

add 802.1q mode as an option on the interfaces filter form.

Use case

currently in the interfaces filter gui theres no option to filter by 802.1q mode. its possible to filter it right now by adding ?mode=tagged-all to the interfaces ui.
filtering by poe mode is already an option so its a bit odd that 802.1q mode isnt available

Database changes

n/a

External dependencies

n/a

[pheus]

Hi @jnovinger,
I'd like to contribute this. Would you mind assigning the issue to me?

I’ve already implemented the feature and chose to use a MultipleChoiceFilter for the mode field, which would be a breaking change. Would that be acceptable, or would you prefer I stick with a single mode filter? This could potentially be included in the upcoming v4.3 release.

I went with a MultipleChoiceFilter as it feels more consistent with how PoE mode filtering is handled, but I’m happy to adjust based on what works best for the project.

[jeremystretch]

@pheus assigned to you, thanks!