Added notes specifying the propagation behaviour for kernel.view and kernel.exception.
Add missing info about kernel.request event.
Changed phrasing to explain the effects off propagation stopping.
Fix incorrect event name.
feature #4532 GetResponse*Events stop after a response was set (Lumbendil)

This PR was merged into the 2.3 branch.

Discussion
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GetResponse*Events stop after a response was set

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | All versions
| Fixed tickets | #4516

The kernel.view and kernel.exception events stop propagation when a response is set, and it wasn't noted on the documentation.

Commits
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bebce0e Fix incorrect event name.
e729750 Changed phrasing to explain the effects off propagation stopping.
d13943a Add missing info about kernel.request event.
25e1069 Added notes specifying the propagation behaviour for kernel.view and kernel.exception.