Sse backstage branch web url

What does this MR do?

• Add back the url of the branch as originally designed. We temporarily had to remove this until the branches API was updated to return a web_url.
• Additionally this MR adds a minor styling fix for smaller widths as showcased in screenshots.

Screenshots

Before	After

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content