[Reply] Cap body at 1340 for desktop and tablet (#425)
[Reply] Cap body at 1340 for desktop and tablet (#425)

* Cap reply body with to 1340 on desktop/tablet

* Fix white lines around body of navigation rail

* Cap tablet width to 800

* Use Center widget instead of Row and Flexible

* Change divider width back to 1 and set cap at 1340 for both tablet and desktop

Co-authored-by: Pierre-Louis <e2386c61f3c9518671cc8dda1c111d3a2000a88b@users.noreply.github.com>
flutter/gallery,flutter/gallery,flutter/gallery,flutter/gallery,flutter/gallery,flutter/gallery,flutter/gallery