Bump app component from 5181d411 to e483c558

User-visible changes:

Fixed a scrolling issue in the Diagnostics tab that occurred when there were more than five diagnostics under a single timestamp. The timestamp now remains visible while scrolling.

View PR: https://github.com/tenzir/app/pull/878

View Changes: https://github.com/tenzir/app/compare/5181d411d614b0d525c9f3dc5571a265b32624d3...e483c55831ddc04b80c7a6b1db64cba67e2d8447