* feat(ux): enhance media-type switching experience in RequestBodyEditor
1. When canceling the try-out mode the request body will be reset to its initial state.
2. When the user switches the media-type in the try-out mode, the experience is as follows:
- If the user did edit the request body the body wont be touched and only media type is updated. This is to ensure that user content is NEVER accidentally overwritten with a default value.
- If the user did not edit the request body it is safe to be replaced by the default value of the target media-type.
Multiple example needed some care in order to allow the retain example value to function properly
* fix(test): workaround cypress issue that can't be reproduced manually
* test: added new feature to ensure enhanced user editing flow
Signed-off-by: mathis-m <mathis.michel@outlook.de>
