Fix: Export missing core components from root components (#332)

Author: seromenho

.changeset/big-ladybugs-yawn.md

@@ -0,0 +1,5 @@
+---
+'@web3-ui/core': patch
+---
+
+Export missing core components on components root path

packages/core/src/components/index.ts

@@ -1,2 +1,4 @@
 export * from './ConnectWallet';
+export * from './NetworkSwitch';
 export * from './Provider';
+export * from './TokenBalance';