Follow #23465 and #25624 This PR introduces the following improvements: - We do not need to call `GetTags` to get tags because tags have been loaded by `RepoAssignment`5d35fdb2b9/modules/context/repo.go (L663-L668)- Similarly, the number of tags and releases also have been loaded by `RepoAssignment`, so the related code has been removed from the handlers. The query condition of `GetReleaseCountByRepoID` in `RepoAssignment` has been changed to include draft releases.5d35fdb2b9/modules/context/repo.go (L538-L551)- `releasesOrTags` function has been removed. The code for rendering releases list and tags list moved to `Releases` and `TagList` respectively.