test(frontend): add ConflictingFileModalContentComponent unit tests

[Roshan3580]

Summary

Adds unit tests for ConflictingFileModalContentComponent.

Closes #5465

Changes

• Added conflicting-file-modal-content.component.spec.ts
• Added a test to verify the component is created successfully
• Added a test to verify the component correctly exposes the injected NZ_MODAL_DATA payload

Testing

Executed:

yarn test --include='**/conflicting-file-modal-content.component.spec.ts'
yarn lint

[github-actions]

👋 Thanks for your first contribution to Texera, @Roshan3580!

You can drive common housekeeping tasks just by leaving a comment. Type the command on its own line.

On issues

Command	What it does
/take	Assign the issue to yourself (self-claim it)
/untake	Remove yourself as assignee

To find unclaimed work, search is:issue is:open no:assignee — there's no "triage" label; the search filter is the triage state.

Linking sub-issues

Command	Where to run it	What it does
/sub-issue #12 #13	On the parent	Links #12 and #13 as children of this issue
/unsub-issue #12 #13	On the parent	Unlinks those children
/parent-issue #5	On the child	Sets #5 as this issue's parent
/unparent-issue	On the child	Removes this issue's parent (auto-detected)
/unparent-issue #5	On the child	Removes parent #5 explicitly

You can write references as #12 or bare 12. Cross-repo references like owner/repo#12 aren't supported and are ignored.

On pull requests (author only)

Command	What it does
/request-review @user [@user ...]	Request reviews from those users
/unrequest-review @user [@user ...]	Cancel those review requests

You can mention teams as @org/team, and @copilot works too. Only the PR author can use these commands.

Note: Commands must match exactly — /take this won't work, only /take. Bots are ignored, and you can't self-link an issue or set an issue as its own parent.

For the full contribution flow, see CONTRIBUTING.md.

[Yicong-Huang]

@Roshan3580 please use our PR template. Please feel free to reopen once it is ready. Thanks!