feat: API edit command; apis.json schema

[danielgtaylor]

Add a basic restish api edit command to edit the API config file now that it's in different locations depending on the operating system.

Also adds a schema for the apis.json config file, making it easier to edit in VSCode and other editors.

[codecov]

Codecov Report

Merging #208 (c95742f) into main (3a541b4) will increase coverage by 0.67%.
Report is 4 commits behind head on main.
The diff coverage is 93.75%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #208      +/-   ##
==========================================
+ Coverage   75.37%   76.04%   +0.67%     
==========================================
  Files          26       26              
  Lines        3513     3624     +111     
==========================================
+ Hits         2648     2756     +108     
  Misses        666      666              
- Partials      199      202       +3     

Files Changed	Coverage Δ
cli/apiconfig.go	83.80% <93.75%> (+3.62%)	⬆️

... and 3 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3a541b4...c95742f. Read the comment docs.