Resolve "Git clone URL box on Wiki git access page is broken"

What does this MR do?

This MR fixes the broken UI on the git clone URL box and a couple other buttons in a similar layout on other wiki pages. Also fixes the UI for all responsive states.

Screenshot_Type	Before	After
wiki - git access (lg+)
wiki - git access (md)
wiki - git access (sm-)
wiki - home (lg+)
wiki - home (md)
wiki - home (sm-)
wiki - pages (md+)
wiki - pages (sm-)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #66022 (closed)