Make event dispatcher in `View` and `WebView` optional

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues	-

[what-the-diff[bot]]

PR Summary

• Update to CHANGELOG A new entry has been added to the document that tracks the changes made across different versions of the software.

• Changes in View.php This update allows the system used for managing events to be optional. It includes modifications to ensure that the system functions smoothly even when this component is not provided.

• Adjustments in ViewTrait.php The system is now more lenient when the event manager isn't available, with new safeguards to prevent it from trying to manage events in such cases.

• Updates to WebView.php Like with View.php, the event manager here is also optional. The same precautions have been implemented to prevent the system from managing events when it's not available.

• Modifications in TestHelper.php There's no longer a need to import an additional component for managing events. The changes also allow the event manager to be provided as-is during testing, without requiring an instance of the once imported component.

[codecov[bot]]

Codecov Report

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

Project coverage is 99.26%. Comparing base (6ab2c25) to head (63e16eb).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #250 +/- ## ============================================ - Coverage 99.75% 99.26% -0.50% - Complexity 305 307 +2 ============================================ Files 19 19 Lines 807 811 +4 ============================================ Hits 805 805 - Misses 2 6 +4 ```

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