Add app ID to debug info (#1847)

This will avoid the need to know which forks has which version numbers
and avoid confusion in support.

app/src/main/java/eu/kanade/tachiyomi/util/CrashLogUtil.kt

@@ -40,6 +40,7 @@ class CrashLogUtil(
 
     fun getDebugInfo(): String {
         return """
+            App ID: ${BuildConfig.APPLICATION_ID}
             App version: ${BuildConfig.VERSION_NAME} (${BuildConfig.COMMIT_SHA}, ${BuildConfig.VERSION_CODE}, ${BuildConfig.BUILD_TIME})
             Android version: ${Build.VERSION.RELEASE} (SDK ${Build.VERSION.SDK_INT}; build ${Build.DISPLAY})
             Device brand: ${Build.BRAND}