replace content appName

[ukcasso]

Summary

If you change the appName, the appName of the content should also be changed. It's easier to find changes.

Test Plan

1. put your app name.
2. push 'Show me how to upgrage!' button.
3. confirm change app name.

as-is:

to-be:

[pvinis]

this one might be trickier since sometimes the capitalization is different, but let's merge and we can find the issues later if they appear.