feat(speedtest/web): Update speedtest activity code java to kotlin

app/src/main/java/com/neko/tools/SpeedTestActivity.kt

@@ -0,0 +1,68 @@
+package com.neko.tools
+
+import android.graphics.Bitmap
+import android.os.Bundle
+import android.view.KeyEvent
+import android.view.View
+import android.webkit.WebSettings
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import android.widget.ProgressBar
+import android.widget.TextView
+
+import com.neko.v2ray.ui.BaseActivity
+import com.neko.v2ray.R
+
+class SpeedTestActivity : BaseActivity() {
+    private lateinit var progressBar: ProgressBar
+    private lateinit var txtwait: TextView
+    private lateinit var web: WebView
+
+    private inner class MyWebClient : WebViewClient() {
+        override fun onPageFinished(webView: WebView, url: String) {
+            super.onPageFinished(webView, url)
+            txtwait.visibility = View.GONE
+            progressBar.visibility = View.GONE
+        }
+
+        override fun onPageStarted(webView: WebView, url: String, favicon: Bitmap?) {
+            super.onPageStarted(webView, url, favicon)
+        }
+
+        override fun shouldOverrideUrlLoading(webView: WebView, url: String): Boolean {
+            webView.loadUrl(url)
+            return true
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.uwu_speedtest)
+
+        web = findViewById(R.id.uwu_WebView)
+        progressBar = findViewById(R.id.uwu_ProgressBar)
+        txtwait = findViewById(R.id.uwu_TextView)
+
+        web.webViewClient = MyWebClient()
+        web.settings.apply {
+            javaScriptEnabled = true
+            domStorageEnabled = true
+            loadsImagesAutomatically = true
+            mixedContentMode = WebSettings.MIXED_CONTENT_ALWAYS_ALLOW
+            loadWithOverviewMode = true
+            useWideViewPort = true
+        }
+        web.setInitialScale(1)
+        web.clearCache(true)
+        web.clearHistory()
+        web.loadUrl("https://fusiontempest.speedtestcustom.com")
+    }
+
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        if (keyCode == KeyEvent.KEYCODE_BACK && web.canGoBack()) {
+            web.goBack()
+            return true
+        }
+        return super.onKeyDown(keyCode, event)
+    }
+}