fix: Various performance fixes

- Prevent duplicate RPC calls caused by not unloading card popover correctly
- Reconfigure ethers FallbackProvider to improve response time

Author: micwallace

javascript/engine-js/src/wallet/EthersAdapter.ts

@@ -331,13 +331,13 @@ export class EthersAdapter implements IWalletAdapter {
 				rpcUrls.map((url, index) => {
 					return {
 						provider: new ethers.JsonRpcProvider(url, chain, { staticNetwork: new Network(chain.toString(), chain) }),
-						stallTimeout: 1500,
+						stallTimeout: 3000,
 						priority: index + 1,
 					}
 				}),
 				chain,
 				{
-					quorum: 2
+					quorum: 1
 				}
 			);
 		} else {

javascript/tokenscript-viewer/src/components/common/card-view/card-popover.tsx

@@ -191,7 +191,7 @@ export class CardPopover implements IViewBinding {
 			history.replaceState(undefined, undefined, "#" + currentParams.toString());
 		}
 
-		await this.dialog.openDialog(() => this.unloadTokenView());
+		await this.dialog.openDialog(() => this.tokenScript.getViewController().unloadTokenCard());
 	}
 
 	async unloadTokenView() {

javascript/tokenscript-viewer/src/components/viewers/tabbed/viewBinding.tsx

@@ -39,7 +39,6 @@ export class ViewBinding extends AbstractViewBinding {
 
 	async unloadTokenView(){
 		(this.view as HTMLDivElement).style.display = "none";
-		await super.unloadTokenView();
 	}
 
 	async renderAttributesTable(){