Fix swipeable on window resize

[blazejkustra]

Description

Simplification of layout synchronization:

• Removed the rightOffset shared value and the associated updateRightElementWidth function, which were used for synchronizing layout measurements between JS and UI.

Handling of right element width:

• Updated the rightElement callback to directly set the rightWidth value based on the layout width of the right actions container.
• Added a new style rightActionsContainer to ensure the correct flex direction for the right actions container.

Test plan

Test if swipeable works well on web after window resize

[latekvo]

Works great, just a few minor requests

[latekvo]

It seems these changes brake the right action of GmailStyleSwipeableRow in the New Swipeable example in the New api section of our example app.

I think this may be caused by rightWidth.value being updated only in onLayout which might be loaded too early to read the panel width.
Previously it was updated multiple times using the updateRightElementWidth() function.
As far as I remember, this was done to fix non-deterministic element loading.

[latekvo]

Fixed in #3341