feat: add ability to add and show partner-specific information

[khiga8]

Partial: #5020

Description

• Database migration to add new info_for_partner field to the partner.rb model.
• Update the create/edit partner information frontend with a new textarea. (for partner)
• Update the partners_controller.rb to accept new field params.
• Update the dashboard page for partner to add information.
• Added a test

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

I updated the spec/system/partner_system_spec.rb spec.

Screenshots

[cielf]

Note: Apparently this PR does not include the user guide fixes. Therefore downgrading the "Fixes" to "Partial"

[cielf]

Heads up to @khiga8 It may take me a few days to get this tested.

[cielf]

Hey @khiga8 -- thanks for this! It does what was asked for -- excluding the user guide changes -- I'm seeing that I should have also asked for it to be added in to the bank's view of the partner, between notes and partner profile.
Are you up for handling that, or shall I put it into a new issue?

ps. this still has to go through a technical review, and heads up -- we won't be merging this without the user guide changes.

[cielf]

@dorner -- when you've reviewed this, please toss it back to me, and I'll handle the user guide, since @khiga8 doesn't think they have enough context.

[dorner]

Overall looks good - had one question.

[dorner]

Does this really need its own partial? It's four lines of view code.

[awwaiid]

Thanks @khiga8 ! I needed to make some small changes, so I did that over at #5270 . I'm closing this, but your work will soon be merged!