IPVGO: Handle RNG seeding and visual board updating bugs (#1258)

src/Go/boardState/offlineNodes.ts

@@ -8,7 +8,7 @@ import { floor } from "./boardState";
 type rand = (n1: number, n2: number) => number;
 
 export function addObstacles(boardState: BoardState) {
-  const rng = new WHRNG(Player.totalPlaytime);
+  const rng = new WHRNG(Player.totalPlaytime ?? new Date().getTime());
   const random = (n1: number, n2: number) => n1 + floor((n2 - n1 + 1) * rng.random());
 
   const shouldRemoveCorner = !random(0, 4);

src/Go/ui/GoGameboardWrapper.tsx

@@ -166,6 +166,7 @@ export function GoGameboardWrapper({ showInstructions }: GoGameboardWrapperProps
 
   function setTraditional(newValue: boolean) {
     Settings.GoTraditionalStyle = newValue;
+    rerender();
   }
 
   const endGameAvailable = boardState.previousPlayer === GoColor.white && boardState.passCount;