feat: Google Tag Integration

[RaflyLesmana3003]

What does this PR do?

Feat: add new integration option for google tag manager for formbricks survey.

7f436137-67e7-4a3e-a043-cee0ef22aaa8.webm

How should this be tested?

• Add new tag then try to verify if the tag is already called when open the survey
• Since each survey can have multiple tags, you must verify that the survey should have the right tag.

Checklist

Required

• Filled out the "How to test" section in this PR
• Read How we Code at Formbricks
• Self-reviewed my own code
• Commented on my code in hard-to-understand bits
• Ran pnpm build
• Checked for warnings, there are none
• Removed all console.logs
• Merged the latest changes from main onto my branch with git pull origin main
• My changes don't cause any responsiveness issues
• First PR at Formbricks? Please sign the CLA! Without it we wont be able to merge it 🙏

Appreciated

• If a UI change was made: Added a screen recording or screenshots to this PR
• Updated the Formbricks Docs if changes were necessary

[vercel]

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[github-actions]

Thank you for following the naming conventions for pull request titles! 🙏