INT-3324: Move tinymce to an optional peer dependency

[danoaky-tiny]

INT-3324

Changes:

• The tinymce package is now an optional peer dependency.
• Imports of tinymce now use import type ... to help prevent accidental usage of tinymce JS code through a direct import in this way.
• Upgraded dependencies to latest

This would require a major version bump as anybody that's using the provided tinymce (that is currently a dependency) would have their editor break. Although according to our docs this isn't the intended way to self host tinymce, it's still a breaking change.

[FarzadHayat]

Running yarn lint, I get warning:

yarn run v1.22.22
$ eslint 'src/**/*.ts?(x)'
=============

WARNING: You are currently running a version of TypeScript which is not officially supported by @typescript-eslint/typescript-estree.

You may find that it works just fine, or you may not.

SUPPORTED TYPESCRIPT VERSIONS: >=3.3.1 <5.2.0

YOUR TYPESCRIPT VERSION: 5.5.3

Please only submit bug reports when using the officially supported version.

=============

devDependency "@tinymce/eslint-plugin": "^2.3.1" has it's own devDependency on "@typescript-eslint/typescript-estree": "^5.59.5", see: https://github.com/tinymce/eslint-plugin/blob/main/package.json#L25. Latest version of @typescript-eslint/typescript-estree is v7.16.1. Is this fine?

[danoaky-tiny]

devDependency "@tinymce/eslint-plugin": "^2.3.1" has it's own devDependency on "@typescript-eslint/typescript-estree": "^5.59.5", see: https://github.com/tinymce/eslint-plugin/blob/main/package.json#L25. Latest version of @typescript-eslint/typescript-estree is v7.16.1. Is this fine?

@FarzadHayat Should be fine IMO. I've never had a problem with this warning.