feat!: update to Capacitor 4

[robingenz]

Pull request checklist

Please check if your PR fulfills the following requirements:

• The changes have been tested successfully.
• A changeset has been created (npm run changeset).

Close #125

[robingenz]

Firebase Analytics:

npm i @capacitor-firebase/analytics@0.5.1-dev.bd42e0a.1659614749

Firebase App:

npm i @capacitor-firebase/app@0.5.1-dev.bd42e0a.1659614749

Firebase Authentication:

npm i @capacitor-firebase/authentication@0.5.1-dev.bd42e0a.1659614749

Firebase Crashlytics:

npm i @capacitor-firebase/crashlytics@0.5.1-dev.bd42e0a.1659614749

Firebase Cloud Messaging:

npm i @capacitor-firebase/messaging@0.5.1-dev.bd42e0a.1659614749

Firebase Performance Monitoring:

npm i @capacitor-firebase/performance@0.5.1-dev.bd42e0a.1659614749