Description of problem:

 Not userfriendly error message when can't connect to Jira Server instance

Version-Release number of selected component (if applicable):

7.0.3-10  

How reproducible:

100%

Steps to Reproduce:
1. Create Jira Server credentials with WRONG data
2. Create Jira connection using those credentials
3. Click on error status of connection
4. Observe text in error message

Actual results:

request failed. Please analyze the request body for more details. Status code: 401

Expected results:

Client must be authenticated to access this resource.
This is same error message as when connecting to Jira Cloud instance with auth problems.

Additional info: