Use context for maintaining accounts state (#41)

* Use context for maintaining accounts state

* Remove custom hook from context

context/AccountsContext.tsx

@@ -0,0 +1,25 @@
+import React, { createContext, useState } from 'react';
+
+import { AccountsState } from '../types';
+
+const AccountsContext = createContext<{
+  accounts: AccountsState;
+  setAccounts: (account: AccountsState) => void;
+}>({
+  accounts: { ethAccounts: [], cosmosAccounts: [] },
+  setAccounts: () => {},
+});
+
+const AccountsProvider = ({ children }: { children: any }) => {
+  const [accounts, setAccounts] = useState<AccountsState>({
+    ethAccounts: [],
+    cosmosAccounts: [],
+  });
+  return (
+    <AccountsContext.Provider value={{ accounts, setAccounts }}>
+      {children}
+    </AccountsContext.Provider>
+  );
+};
+
+export { AccountsContext, AccountsProvider };