Add title screen

Multi-language support

menu.js

@@ -0,0 +1,20 @@
+// const canvas = document.getElementById("tetris");
+// const context = canvas.getContext('2d');
+
+window.onresize = function (event) {
+    scaleWindow();
+};
+
+function scaleWindow() {
+    canvas.height = window.innerHeight - 40;
+    canvas.width = canvas.height / (5 / 3);
+    context.scale(canvas.width / fieldSize.x, canvas.height / fieldSize.y);
+}
+
+scaleWindow();
+
+document.getElementById("game-play").addEventListener("click", (event) => {
+    document.getElementById("game-title").parentNode.removeChild(document.getElementById("game-title"));
+    document.getElementById("game-play").parentNode.removeChild(document.getElementById("game-play"));
+    startGame();
+});