Task/Issue URL: https://app.asana.com/0/72649045549333/1205842534063579/f
Tech Design URL:
CC:

Description:
Add swipe tabs functionality.

Steps to test this PR:

Internal User:

1. This feature is behind the internal user flag. When this is off then swipe tabs should not work on any device.

Phone:

1. When on Home Screen with no tabs: no scrolling
2. When on a single tab on a web page: swiping left will launch a new tab. Note that if there are favourites they will not be shown until a 'preview' of the tab has been captured, so will show Dax the first time you swipe to a new tab
3. Swiping between pages will show a preview if one has been captured. Web pages not loaded yet will start to load (same as if opening from the tab switcher).
4. Switching orientation will scale the preview, but won't align it with the scroll position on the page in the other orientation.
5. Check the fire button
6. Check opening a new tab from long press the tab button
7. Check opening a new tab from the tab switcher

iPad:

1. Swipe tabs will only show when in the "iPhone view" - e.g. the small split screen view.
2. When in iPad view no swiping should work and the tabs bar should be visible

Themes:

1. Check light and dark mode.

OS Version:

1. Should work for all supported OS. Ideally check 14, 15, 16 and 17 (I've tested 16 and 17 as don't have device/simulator for 14/15 - ping me if it's a problem and I'll get them).