fix(contest): right-align Host tag in contest comments

[dylanjeffers]

Summary

• Right-align the Host tag in contest comments to match the track-page CommentBlock layout (user link + timestamp on the left, Host badge on the right).
• Applies to both the main contest comment row and nested reply rows in ContestCommentsTile.tsx. The header comment in that file already described this layout intent — the implementation now matches it.

Changes

• ContestCommentsTile.tsx main row: wrap the header in Flex justifyContent='space-between', with UserLink + Timestamp in a left flex and the Host badge in a right <Box css={{ flexShrink: 0 }}> (mirrors CommentBlock.tsx lines 143-189).
• ContestCommentsTile.tsx reply row: move the Host badge out of the inner left flex into a right-side flex alongside the existing kebab menu, so the badge is right-aligned next to the overflow trigger.

Test plan

• As the contest host, post a top-level contest comment and confirm the Host tag is right-aligned in the comment header.
• As the contest host, reply to a contest comment and confirm the Host tag and kebab menu are both right-aligned.
• As a non-host user, confirm the layout still renders correctly (no badge, no kebab unless author).
• Confirm Updates feed rows (where the host badge is suppressed) render unchanged.
• Resize the viewport / use a long username to confirm the left content wraps without pushing the badge off-screen.

---

Generated by Claude Code

[changeset-bot]

🦋 Changeset detected

Latest commit: 2f5a2bb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@audius/web	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

🌐 Web preview ready

Preview URL: https://audius-web-preview-pr-14282.audius.workers.dev

Unique preview for this PR (deployed from this branch).
Workflow run