chore: use ajv standalone validation code

Context

Verifiers UI are required to have unsafe-eval in their Content Security Policy (CSP) to use our library because we are using ajv compile at runtime. To have a more secure CSP, we will be compiling the schemas at build time instead.
https://ajv.js.org/security.html#content-security-policy
https://ajv.js.org/standalone.html

add compilation of schema in postInstall.js
- there are two types of validation modes in our codebase - strict and non-strict; hence there are two compiled javascript functions file which caters for both scenarios.
removed compilation of schema during runtime to avoid the need for unsafe-eval on Verifiers UI
make use of the compiled schema javascript functions for validation
modified tsconfig.json to allowJs imports (to import the compiled files)