fix(ui): SE bug fixes

Description

Related issue

• When I click on the "Test connection" button, nothing happens, I don't see any messages.
• The password is displayed in plain text.
• The "Reload info" button is not active.

#501 (comment 1359396180)

Examples

Checklist

• MR description has been reviewed
• MR changes are functionally tested
• MR does NOT have API/CLI changes OR there are API/CLI changes and they have been reviewed & DOCS ARE ADJUSTED (reference doc, etc)
• MR does NOT have UI changes OR there are UI changes and they have been reviewed & UX IS REVIEWED

Closes #501 (closed)