fix: webapp_url env var not reflected client side

[ShubhamPalriwala]

What does this PR do?

1. We are importing the SURVEY_BASE_URL from the constants.ts which reads the NEXT_PUBLIC_SURVEY_BASE_URL and if it does not exist, it sets it to the WEBAPP_URL/s/.
2. Now, the WEBAPP_URL is determined by:

export const WEBAPP_URL = process.env.WEBAPP_URL ||  process.env.NEXT_PUBLIC_WEBAPP_URL || VERCEL_URL || RAILWAY_STATIC_URL ||  HEROKU_URL || RENDER_URL || "http://localhost:3000/";

3. And since the import is on the CLIENT side, it cannot read the WEBAPP_URL from the env vars (does not have the NEXT_PUBLIC_ prefix) hence goes to the backup localhost:3000!

This PR fixes that by parsing and passing the surveyBaseUrl as a prop to all the client side components!

Fixes #799

Type of change

• Bug fix (non-breaking change which fixes an issue)

How should this be tested?

Set a WEBAPP_URL other than localhost:3000 and it should reflect the same when sharing the Link survey either from the share modal or from the surveys dropdown page!

Checklist

• Added a screen recording or screenshots to this PR
• Filled out the "How to test" section in this PR
• Read the contributing guide
• 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
• Updated the Formbricks Docs if changes were necessary

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Name	Status	Preview	Updated (UTC)
formbricks-cloud	❌ Failed (Inspect)		Sep 12, 2023 4:22am

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Name	Status	Preview	Updated (UTC)
formbricks-com	⬜️ Ignored (Inspect)		Sep 12, 2023 4:22am

[github-actions]

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

[mattinannt]

@ShubhamPalriwala thanks a lot for the PR 😊💪 Looks great! :-)

[noahnoahk]

i have not ran into any bug after the update