Fix app crashes on android 6

[onlyashd]

We had two problems on issue #63.

Issue 2: Android 6 "Bad position" (ICU Decoder) Bug

Android 6.0 (API 23) contains a system-level bug in the java.nio charset decoder (ICU). When decoding certain byte sequences from a network response into a String, the decoder can incorrectly flush its buffer, leading to an IllegalArgumentException: Bad position. This prevents the app from correctly detecting and handling Cloudflare protection on older devices.

Current Workaround:
I implemented a manual byte-peeking and decoding strategy in CloudFlareInterceptor.kt specifically for API 23 to bypass the buggy system decoder for basic protection detection.

While our interceptor now has a safety check, the core CloudFlareHelper within the kotatsu-parsers-redo library still relies on standard decoding methods that trigger this crash. To fully resolve this problem, Kotatsu-Redo team needs to update CloudFlareHelper to avoid triggering the ICU bug on Android 6 (e.g., by using a safer decoding approach or peeking the source).

Issue 2: Focus Search Crash

When hitting enter on the search bar the app would throw the following exception: java.lang.IllegalStateException: focus search returned a view that wasn't able to take focus!

Solution:
I've updated the item_extension.xml layout to make the root container explicitly focusable and clickable. This ensures that the list item itself serves as a stable focus target, preventing the focus-finder from failing when internal buttons disappear.

---

Fixes #63

[github-actions]

Debug APK built successfully!

Download artifact: debug-apk

Artifact will be available for 7 days

[LandWarderer2772]

LGTM