Add ability to show/hide password

Screenshots:
- https://screenshot.googleplex.com/BJpAPUcZGLex2JR
- https://screenshot.googleplex.com/9HdkdBw7cg9XYRM

Bug: 266571936
Fix: 266571936
Test: local deployment
Change-Id: I42dc1346f719351590c01e81be3a466a3c4a0d01
4 files changed