Docs: [no-inferrable-types] Explain whether and how to use (or not use) with `isolatedDeclarations`

[pikadun]

Before You File a Proposal Please Confirm You Have Done The Following...

• [X] I have searched for related issues and found none that match my proposal.
• [X] I have searched the current rule list and found no rules that match my proposal.
• [X] I have read the FAQ and my problem is not listed.

My proposal is suitable for this project

• [X] I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Link to the rule's documentation

https://typescript-eslint.io/rules/no-inferrable-types/

Description

It would be nice to use "no-inferrable-types" with isolatedDeclarations

Fail

const a: bigint = 10n;
export const b = true;

Pass

const a = 10n;
export const b: boolean = true;

Additional Info

No response