Bugfix FXIOS-10560 - Password Generator: Keyboard Closing After Accessing Pass Gen

[DanielDervishi]

📜 Tickets

Jira ticket
Github issue

💡 Description

Added the ability to specify a dismiss completion handler for a bottom sheet. I don't really know how valuable this is for bottomsheets in general, so I could definitely just create a subclass of bottom sheet VC for password generator which overrides dismiss functionality. Some thoughts and feedback on this would be great.

This is also a sort of hacky way of fixing the bug which we may not want to move forward with. It leverages the seemingly auto focusing capabilities that come with reloading the webview for an accessory view in order to show the keyboard again for the password generator.

Also its worth noting that clicking onto another field would not switch to the standard keyboard view, even if its not a keyboard field due to the nature of when accessory views are loaded (pretty sure they have to explicitly be loaded) and I don't believe that the standard accessory view is loaded whenever we focus a non-special field.

📝 Checklist

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• Filled in the above information (tickets numbers and description of your work)
• Updated the PR name to follow our PR naming guidelines
• Wrote unit tests and/or ensured the tests suite is passing
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