Inline images preview follow ups

[Skalakid]

Details

This PR:

• add support for offline patterns and enable image reloading when the app becomes online again
• fix image styles after the app becomes online and input refreshes
• fix async image preview loading while the user is typing. Previously, the image was loaded infinitely until the user stopped writing
• fix image preview markdown layout when it's nested in the h1 tag

Related Issues

Expensify/App#49250

Manual Tests

Offline support

1. Open an example app
2. Turn off internet connection on your device
3. Change the example image URL to something else. for example: https://picsum.photos/id/167/200/300
4. Turn on internet connection
5. Verify if the image has been loaded
6. Verify image styles and size

H1 tag nesting

1. Open an example app
2. Put "#" before the inline images markdown tag
3. Verify the styles of the new structure

Async image loading while typing

1. Open the example app
2. Replace content with the following content:

![demo image](https://images.unsplash.com/photo-1597431793715-b4b71ddb5670?crop=entropy&cs=tinysrgb&fit=crop&fm=jpg&h=800&ixid=MnwxfDB8MXxyYW5kb218MHx8fHx8fHx8MTcNDQ3OTI3Nw&ixlib=rb-4.0.3&q=80&utm_campaign=api-credit&utmmedium=referral&utm_source=unsplash_source&W=191234512)

5. While this image is being loaded, start typing any text until the image is being loaded
6. Verify if the image was loaded

Linked PRs

[BartoszGrajdek]

LGTM, works great!