feat: Capacitor 7 Support

[ckoon-infopro]

Capacitor 7 has been released.
https://capacitorjs.com/docs/updating/7-0

After upgrading from Capacitor 6 to Capacitor 7, I encountered a syntax error while using this plugin.

error: cannot find symbol
            call.error("Camera is not running");
                ^
  symbol:   method error(String)

Plugin's success() and error() methods have been removed, use resolve() and reject() instead.

Source: https://capacitorjs.com/docs/updating/plugins/7-0

[ryaa]

@ckoon-infopro I have implemented the required changes to support Capacitor 7 (see #366). Can you please install capacitor-community/camera-preview v7.0.0 from my branch https://github.com/ryaa/camera-preview/tree/chore/update-to-capacitor-7 and check if this works as expected. Thank you