feat: add debug mode via url parameter

[jonas-hoebenreich]

What does this PR do?

When debugging in-app surveys & triggers it would be helpful to have an option to enable the debug mode on the fly by adding a parameter to the URL.
You can now add ?formbricksDebug=1 to the URL to enable debugging

Fixes #2016

How should this be tested?

• add pixel to page without debug mode enabled, add ?formbricksDebug=1 to the url

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

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]

@jonas-hoebenreich is attempting to deploy a commit to the formbricks Team on Vercel.

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[github-actions]

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

[mattinannt]

@jonas-hoebenreich thanks a lot for the PR 😊💪 Very cool that you added docs, too 🤩
Only one comment/question before we move on with the merge:

[mattinannt]

@jonas-hoebenreich thanks a lot for making the changes 😊💪🚀