Add genesisHash checks to all loads (#197)

* Add genesisHash checks to all loads

* Only match when genesisHash is supplied

* Swap to bash

* Naming

* Check for empty json

* Filter injected on genesisHash as well

* Bump deps

packages/react-identicon/package.json

@@ -25,8 +25,8 @@
     "react": "*"
   },
   "devDependencies": {
-    "@polkadot/keyring": "^1.2.0-beta.5",
-    "@polkadot/util-crypto": "^1.2.0-beta.5",
+    "@polkadot/keyring": "^1.2.0-beta.6",
+    "@polkadot/util-crypto": "^1.2.0-beta.6",
     "xmlserializer": "^0.6.1"
   }
 }