Changes

fix that non-successful message responses were not displayed in ACE editor

* only successful responses were displayed
* however, messages might e.g. be answered with a 400 (bad request) and useful information as response
 (commit: d66fa72)

display attributes in UI in an aceEditor instead of a simple inputfield

* for attributes which were JsonObjects or JsonArrays, displaying them in a single "input" field was very umcomfortable
 (commit: 7b6b432)

address review finding, adding class resizable_pane and height

Signed-off-by: Thomas Jäckle <thomas.jaeckle@beyonnex.io>
 (commit: 2780ce6)

improved error toast and showing errors from Ditto

* display error toast also for message responses with "failed" response code
* but still display the response as well in the messages response ace editor
* still show JSON errors which are not formatted as "ditto error" (containing at least status and message)

Signed-off-by: Thomas Jäckle <thomas.jaeckle@beyonnex.io>
 (commit: 3ce5b55)