Add a button to start session from game overview

Fix #62

games/templates/components/button_start.html

@@ -0,0 +1,26 @@
+{% comment %} 
+title
+text
+{% endcomment %}
+<button
+  type="button"
+  title="{{ title }}"
+  autofocus
+  class="truncate max-w-xs sm:max-w-md lg:max-w-lg py-1 px-2 bg-green-600 hover:bg-green-700 focus:ring-green-500 focus:ring-offset-blue-200 text-white transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 rounded-lg"
+>
+  <svg
+    xmlns="http://www.w3.org/2000/svg"
+    fill="none"
+    viewBox="0 0 24 24"
+    stroke-width="1.5"
+    stroke="currentColor"
+    class="self-center w-6 h-6 inline"
+  >
+    <path
+      stroke-linecap="round"
+      stroke-linejoin="round"
+      d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.348a1.125 1.125 0 010 1.971l-11.54 6.347a1.125 1.125 0 01-1.667-.985V5.653z"
+    />
+  </svg>
+  {{ text }}
+</button>