refactor: merge AppP and ModC body roles

[sethigeet]

• Remove the AppP body role
• Rename the ModC body role
• Replace all occurences of AppP with ModC
• Migrate all records in DB that refereced AppP to now use ModC

Fixes #511

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (0f0f00c) 91.54% compared to head (2835de8) 91.54%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #517 +/- ## ======================================= Coverage 91.54% 91.54% ======================================= Files 157 157 Lines 6568 6568 ======================================= Hits 6013 6013 Misses 555 555 ```

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[PalMit2002]

@sethigeet Please fix linting issues.

[sethigeet]

@PalMit2002 That is not a function that I have messed with and this lint error also exists on master.