Fixed context issue

Author: Katsute

src/ktt/lib/httpserver/handler/FileHandler.java

@@ -641,7 +641,7 @@ public final void addDirectory(final String context, final File directory, final
 
     @Override
     public final void handle(final SimpleHttpExchange exchange) throws IOException{
-        final String rel = getContext(exchange.getContext().substring(exchange.getHttpContext().getPath().length()));
+        final String rel = getContext(exchange.getURI().getPath().substring(exchange.getHttpContext().getPath().length()));
 
         String match = "";
         for(final String key : files.keySet())

src/ktt/lib/httpserver/handler/RootHandler.java

@@ -29,7 +29,7 @@ public RootHandler(final HttpHandler rootHandler, final HttpHandler elseHandler)
         super(
             rootHandler,
             elseHandler,
-            simpleHttpExchange -> simpleHttpExchange.getContext().equals("/")
+            simpleHttpExchange -> simpleHttpExchange.getURI().getPath().equals("/")
         );
     }