[Suggestion] Login form changes

[HalcyonSeas73]

When the Login form dialog shows up (where one puts their Proton username and password; Tools>ProtonDriveSync settings...), the password is visible by default, rather than using a password field.

Furthermore, this plugin does not allow copying credentials from an existing entry, as the Login form prevents switching focus to the KeePass database, where a ProtonDrive login may be stored. This becomes especially difficult when one has TOTP enabled, where copying the TOTP may be prevented due to lack of said focus.