feat(body): add entities formatting support

[BubuMVX]

Hi !

This pull request adds the support to entities on text messages sent.
This allows:

• messages to be formatted with this Telegram method, instead of Markdown or HTML,
• the usage of FormattedString objects created with grammyjs/parse-mode.

Example

import { bold, fmt, underline } from '@grammyjs/parse-mode';
import { MenuTemplate } from 'grammy-inline-menu';

const menu = new MenuTemplate<MyContext>(async () => {
    const message = fmt`${bold(underline('Hello world!'))}`

    return {
        text: message.text,
        entities: message.entities,
    };
});

[BubuMVX]

Hi @EdJoPaTo !

Sorry, but I struggle to fix this @typescript-eslint/prefer-readonly-parameter-types error.
I tried Readonly<>, ReadonlyArray<> and stuff like that, without success.

Can you help me or point me in the right direction?
Thanks.

[EdJoPaTo]

I like the simplicity of the change!

I'm not sure about the readonly part (see comment on the TextBody) but otherwise I like the addition.

(Side note: I will squash the PR into a single commit later on so adding commits to the PR is easier to review than having force pushes which need to be diffed, loosing a bit of the reasoning of the changes while the PR is ongoing)

[EdJoPaTo]

Can you add a simple test case where some input entity ends up in the sendMessage / sendPhoto method argument just making sure its passed through correctly?

Otherwise its good to merge!

[BubuMVX]

Tests added, I hope they're in line with your standards.

[EdJoPaTo]

I like the added FAQ entry. A few nitpicks but I already like the current state of the PR!

[BubuMVX]

Thanks a lot for your feedback, I updated the documentation

[EdJoPaTo]

Wanted to hit the approve and merge, but I have more nitpicks… Sorry for that! 😇

[BubuMVX]

Wanted to hit the approve and merge, but I have more nitpicks… Sorry for that! 😇

Hahaha! Don't hesitate!
Corrections added

[EdJoPaTo]

I'll merge and release later when I have more time, so I don't introduce mistakes from trying to get it done in a hurry.

[EdJoPaTo]

Thank you for the addition!

It's released as 9.1.0 ✨

[BubuMVX]

Nice!
Thank you so much for your library.
It's one of the best for Telegram bots I've encountered so far.