feat: assisted form creation with Azure OpenAI

[kathleenkhy]

Problem

To migrate the AI Form Builder from Open AI to Azure OpenAI as moving to Azure OpenAI could help us to prevent logging of information for security reasons.

Closes FRM-1659, FRM-1661, FRM-1660, FRM-1682, FRM-1683, FRM-1684

Breaking Changes

• No - this PR is backwards compatible

Features:

• Adding frontend and backend validation for character limit for prompts
• Adding frontend and backend validation for character limit for PDFs (to review again if this is the right approach for users)
• Updating loading image gif
• Updating upload size limit to 5mb

Bug Fixes:

• TODO: to fix bug that when you upload a PDF/ add a prompt and click the back button, you're still able to proceed and click the "Create Form" button
• There should be a behaviour (similar to form builder) that when you click back, there should be a prompt that asks if you're sure to discard what you have uploaded/ input

Before & After Screenshots

BEFORE:

AFTER:

Tests

Deploy Notes

New environment variables:

• env var : env var details

New scripts:

• script : script details

New dependencies:

• dependency : dependency details

New dev dependencies:

• dependency : dependency details

[linear]

FRM-1660 Add Backend Validations for AI Form Builder

FRM-1682 Add Frontend Warning Toast when users exceed the API limit usage

FRM-1683 Frontend Character limit for Prompts

FRM-1684 Frontend Character limit for PDF Uploads

[linear]

FRM-1659 Add API Rate Limits for AI Form Builder

FRM-1661 Migrating over to Azure OpenAI