Change the username and password field on SMTP settings

To prevent password managers to accidentally change the Mail settings :
the username and password fields should have different field names

for example:
in the smtp server settings the field username and password is filled with the account information from the browsers password manager (see screenshot)

Suggested change:
replace field names with : smtp-username and smtp-password

This will prevent the users password manager to insert the stored account information used to log in to JIRA to replace the smtp settings set for JIRA.