fix: Show repo owner in builds repo selector

[steverydz]

Done

Adds the user or organisation name to the list of repo suggestions to avoid confusion over the repo owner when there are two repos with the same name.

How to QA

• Run locally (builds don't work on demos)
• Go to /<snap_name>/builds
• In the "Select a repository" field in the autocomplete, the org/username for each snap should appear under the repo name

Testing

• This PR has tests
• No testing required (explain why):

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-27256

Screenshots

[webteam-app]

Demo

Jenkins

demos.haus

[Copilot]

Pull Request Overview

This PR fixes the repository selector in the builds page to display repository owners alongside repository names. The changes improve user experience by showing the full repository path (owner/repo) in the dropdown selector while maintaining the repository name as the actual value.

Key Changes:

• Sorts repositories alphabetically by name
• Updates the datalist options to display the full repository path including owner

[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

[edisile]

LGTM, thank you!