Remove hard cap from `maxBreadcrumbs`

[marandaneto]

Problem Statement

maxBreadcrumbs is a configurable option, but it can't be set > 100 because of a hard cap.
This is the output after discussing #4682 with @HazAT

Solution Brainstorm

maxBreadcrumbs should be configurable, default to 100, but it can be set > 100 at your own risk.
I'd also add to the property docs about the max payload size for events (currently 1 MB).
Adjust the docs that made the confusion getsentry/sentry-docs#4496 and getsentry/sentry-docs#4794

[marandaneto]

@Lms24 thanks.
Consider merging this once this version is released.

[Lms24]

@marandaneto thanks for the reminder. Will put it on my ToDos.
(All the credits for working on this go to @outsideris btw)