No "Cancel" button for DataSource Settings

[akvlad]

Describe the bug.

You can't cancel datasource settings change without saving.

Reproduction

1. Open qryn-view
2. Go to "Datasource Settings"
3. Add custom HTTP Header
4. Start typing the header name

AR: The "Back" button is replaced to "Save", "Back" button is disappeared.
ER: There should be a way to go back without saving.

AR: There is a "Saved" green icon on the "Custom HTTP Headers" line, while "Save" button is also present
ER: The Datasource Settings page should either follow the "Autosave on edit" or "Manual save" concept, not both.

Application version

3.2.7

Browser version

Firefox 127.0.1

Logs

No response

Anything else?

No response