Add missing relative path for index.html urls

src/Uno.Wasm.Bootstrap/Templates/index.html

@@ -5,11 +5,11 @@
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
 
-    <script defer type="text/javascript" src="require.js"></script>
-    <script type="text/javascript" src="mono-config.js"></script>
-    <script type="text/javascript" src="uno-config.js"></script>
-    <script type="text/javascript" src="uno-bootstrap.js"></script>
-    <script async type="text/javascript" src="mono.js"></script>
+    <script defer type="text/javascript" src="./require.js"></script>
+    <script type="text/javascript" src="./mono-config.js"></script>
+    <script type="text/javascript" src="./uno-config.js"></script>
+    <script type="text/javascript" src="./uno-bootstrap.js"></script>
+    <script async type="text/javascript" src="./mono.js"></script>
     $(ADDITIONAL_CSS)
     $(ADDITIONAL_HEAD)
 </head>