fix: move non-standard subgraph to g.nftx.xyz

the shared subgraph has been switched off so we can no longer fetch asset data for punks or cryptokitties
however, we now have our own hosted subgraph at g.nftx.xyz which we can now switch to

packages/constants/src/subgraph.ts

@@ -19,7 +19,7 @@ const createNftxGraphs = (name: string) => {
 };
 
 export const NON_STANDARD_SUBGRAPH = {
-  [Network.Mainnet]: `https://graph-proxy.nftx.xyz/shared/subgraphs/name/0xorg/non-standard-nfts`,
+  [Network.Mainnet]: 'https://g.nftx.xyz/non-standard-nfts/eth-mainnet',
 };
 
 export const ERC721_SUBGRAPH = createNftxGraphs('erc721');