front: minore updates

webapp/src/App.js

@@ -14,6 +14,7 @@ function App() {
         <Header/>
         <div className="Container">
           <Routes>
+            {/* https://stackoverflow.com/questions/40541994/multiple-path-names-for-a-same-component-in-react-router */}
             <Route path="/game" element={<Game/>} />
             <Route path="/game/proposal" element={<Game/>} />
             <Route path="/game/active" element={<Game/>} />

webapp/src/components/Board/index.css

@@ -27,3 +27,7 @@
 .tile.white:hover {
     background-color:azure;
 }
+
+.stone {
+    font-size: 120%;
+} 

webapp/src/components/GameSelector/index.css

@@ -40,8 +40,3 @@
     padding-left: 50%;
     margin-bottom: 7px;
 }
-
-.stone {
-    font-size: 140%;
-    vertical-align: -3px;
-}