fix: Remove unsafe Application casts from configuration

[kmsbernard]

Summary

This PR removes unsafe type casts of configuration.context to Application.

We’re using the SDK in Home Widgets, where the provided Context is not always an instance of Application. As a result, the SDK crashes when it attempts to cast the context unsafely.

To improve compatibility and prevent crashes in such environments, this change:

• Removes direct casts to Application
• Uses safe type checks (is Application) before calling application-specific methods

Checklist

• [x] Does your PR title have the correct title format?
• Does your PR have a breaking change?: No

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✅ No documentation updates required.