Update snaps-jest docs

[ziad-saab]

• More descriptive names for tests
• Remove parameters to snap.onHomepage
• Remove references to executionEnvironmentUrl and simulatorUrl

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (01829d3) 96.54% compared to head (b7a9502) 96.54%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2181   +/-   ##
=======================================
  Coverage   96.54%   96.54%           
=======================================
  Files         331      331           
  Lines        7463     7463           
  Branches     1146     1146           
=======================================
  Hits         7205     7205           
  Misses        258      258           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[Mrtenz]

Suggested change

	you want to use your own HTTP server, you can disable this option, and use [`installSnap`](#install-a-snap) with a custom server, e.g. `installSnap('local:http://my-server')`.
	you want to use your own HTTP server, you can disable this option, and use
	[`installSnap`](#install-a-snap) with a custom server, e.g.,
	`installSnap('local:http://my-server')`.