[landing] address signal comparison copy touch ups

Summary:
resolves the following signal comparison copy:

https://linear.app/comm/issue/ENG-4622/signal-comparison

Depends on D8783

Test Plan:
Please see the screenshot:

Reviewers: atul, kamil, ashoat

Reviewed By: ashoat

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D8784