Do not alter the casing on the project details page
### Problem
Project topics were modified in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24415 according to https://gitlab.com/gitlab-org/gitlab-ce/issues/54544. However, they were are still using Title Case, see also the design specs in https://gitlab.com/gitlab-org/gitlab-design/issues/138.
| Topics (edit) | Topics (view) |
| ------ | ------ |
|  |  |
### Proposal
Don't alter topics case.
| Before | After |
| ------ | ------ |
|  |  |
issue