Add Kotlin/Android stacktrace compression

[jee599]

Add error compression for Kotlin/Android stacktraces. Filter Android framework frames (android.app, android.view, androidx) and keep user code frames.

[jee599]

Thanks @jatinkumar2409! Feel free to pick this up. Check src/filters/error_stacktrace.rs for the existing pattern — follow the same structure for Kotlin/Android. Open a PR when ready, I'll review.

[anupamdwivedi98]

Hi, I would like to work on this issue. Is it still available?

[anupamdwivedi98]

Hi! I started looking into this issue, but I couldn't find the file "src/filters/error_stacktrace.rs" in the current codebase. Has it been moved or renamed? Could you please guide me to the correct location?