Add ability to dismiss attachment modal via swipe

[Jag96]

@marcaaron will you please review this?

Details

This PR adds the ability to swipe down and right to dismiss an attachment on mobile.

Fixed Issues

Fixes https://github.com/Expensify/Expensify/issues/154788

Tests

1. Sign into an account and send an image attachment
2. After the attachment uploads, tap on it, confirm an attachment modal shows
3. Double tap on the image, confirm it zooms
4. Double-tap again, confirm it zooms out
5. Use two fingers to zoom in, confirm the image zooms in
6. While zoomed in, swipe down and right and confirm the modal doesn't close, and that the viewport pans around the zoomed image
7. Double-tap again then swipe down or right, confirm the modal dismisses
8. Confirm that there are no regressions on web
   1. Confirm attachments still show up on web
   2. Confirm the modal attachment closes normally on web

QA Steps

Same as above

Tested On

• Web
• Mobile Web
• Desktop
• iOS
• Android

[Jag96]

Looks like this wasn't updated previously, doing a pod install added these.

[marcaaron]

LGTM!

[OSBotify]

🚀 [Deployed](https://github.com/Expensify/Expensify.cash
/actions/runs/765130740) 🚀 to
staging on Mon Apr 19 2021 at 22:41:56 GMT+0000 (Coordinated Universal Time)

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

[isagoico]

Android/iOS - Chat - Image does not zoom in when two fingers are used

Expected Result

Confirm the image zooms in

Actual Result

Image does not zoom in

Action Performed

1. Launch the app and login
2. Send an image attachment
3. After the attachment uploads, tap on it, confirm an attachment modal shows
4. Use two fingers to zoom in

Platform

iOS ✔️
Android ✔️

Notes/Images/Videos
Issue is reproducible in production but it's failing step 5 of the PR. Let me know if I should raise this as a separate issue.

Bug5030887_20210420_162938_1_.mp4

[Jag96]

@isagoico if this is happening on production then let's create a new issue for it, feel free to tag me in it and I'll have a look