watchAsset for NFT does not exist

[dirtycajunrice]

As NFTs are now globally available both in the mobile as well as the desktop extension, the watchAsset logic has now fallen out of date. The watchAsset function only binds to the tokensController for watchAsset and no such function exists in the NFTController.

core/packages/assets-controllers/src/TokensController.ts

Lines 643 to 654 in 269f4af

	try {
	switch (type) {
	case 'ERC20':
	validateTokenToWatch(asset);
	break;
	default:
	throw new Error(`Asset of type ${type} not supported`);
	}
	} catch (error) {
	this.failSuggestedAsset(suggestedAssetMeta, error);
	return Promise.reject(error);
	}

This does not check, nor have any validation logic, for ERC1155 or ERC721 assets.