feat: add help footer on bulk import upload modal

[enzomerca]

What problem is this solving?

Add missing help footer on the bulk import upload modal.
Before:

After:

How to test it?

Go to Organizations app, click on "New > Bulk Import". You should see the upload modal and it should have a footer with links to the template file and help center.
Workspace

[vtex-io-ci-cd]

Hi! I'm VTEX IO CI/CD Bot and I'll be helping you to publish your app! 🤖

Please select which version do you want to release:

• Patch (backwards-compatible bug fixes)

• Minor (backwards-compatible functionality)

• Major (incompatible API changes)

And then you just need to merge your PR when you are ready! There is no need to create a release commit/tag.

• No thanks, I would rather do it manually 😞

[github-actions]

	Warnings
⚠️	Looks like this PR is too large [:bulb: smaller PRs are easy to review and approve]

	Messages
📖	❤️ Thanks!
📖	🎉 PR additions = 55, PR deletions = 1

Generated by 🚫 dangerJS against c7568b2

[sonarcloud]

Quality Gate passed

Issues
2 New issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[vtex-io-ci-cd]

Your PR has been merged! App is being published. 🚀
Version 1.30.2 → 1.31.0

After the publishing process has been completed (check #vtex-io-releases) and doing A/B tests with the new version, you can deploy your release by running:

vtex deploy vtex.b2b-organizations@1.31.0

After that your app will be updated on all accounts.

For more information on the deployment process check the docs. 📖