chore: lint performance optimization

This includes shadowed variables, unnecessary parameters, layouts with string literals, items that cause performance bottlenecks, and the merge of extension types into only the necessary separate classes.

app/src/main/java/ani/dantotsu/parsers/novel/NovelExtensionFileObserver.kt

@@ -0,0 +1,66 @@
+package ani.dantotsu.parsers.novel
+
+import android.os.FileObserver
+import ani.dantotsu.parsers.novel.FileObserver.fileObserver
+import ani.dantotsu.util.Logger
+import java.io.File
+
+
+class NovelExtensionFileObserver(private val listener: Listener, private val path: String) :
+    FileObserver(path, CREATE or DELETE or MOVED_FROM or MOVED_TO or MODIFY) {
+
+    init {
+        fileObserver = this
+    }
+
+    /**
+     * Starts observing the file changes in the directory.
+     */
+    fun register() {
+        startWatching()
+    }
+
+
+    override fun onEvent(event: Int, file: String?) {
+        Logger.log("Event: $event")
+        if (file == null) return
+
+        val fullPath = File(path, file)
+
+        when (event) {
+            CREATE -> {
+                Logger.log("File created: $fullPath")
+                listener.onExtensionFileCreated(fullPath)
+            }
+
+            DELETE -> {
+                Logger.log("File deleted: $fullPath")
+                listener.onExtensionFileDeleted(fullPath)
+            }
+
+            MODIFY -> {
+                Logger.log("File modified: $fullPath")
+                listener.onExtensionFileModified(fullPath)
+            }
+        }
+    }
+
+    /**
+     * Loads the extension from the file.
+     *
+     * @param file The file name of the extension.
+     */
+    //private suspend fun loadExtensionFromFile(file: String): String {
+    //    return file
+    //}
+
+    interface Listener {
+        fun onExtensionFileCreated(file: File)
+        fun onExtensionFileDeleted(file: File)
+        fun onExtensionFileModified(file: File)
+    }
+}
+
+object FileObserver {
+    var fileObserver: FileObserver? = null
+}