WKWebView: Fix Blank Screen and Prevent Memory Leaks #16
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Use removeScriptMessageHandlers to prevent memory leaks.
Recreate the web view when it turns blank.
Reference: https://nevermeant.dev/handling-blank-wkwebviews/
We avoid using a timer-based solution since it's resource-intensive. Instead, we've observed that blank issues typically occur when the app is restored from the background. Therefore, a one-time check is performed during background restoration.