Fix crash when open or clicking favorite

[takahirom]

Overview (Required)

• Crash when clicking favorite

Steps To Reproduce

0. Install from DeployGate
1. Click on 'favorite'
2. See error

Screenshots

[nyafunta9858]

@takahirom
Because I confirmed that I made modifications and did not crash, may I create PR?
But I do not know whether this is an appropriate correction because I don't know very much about R8 code shrink...is it OK?

[takahirom]

Thanks! It is OK!🙏