Refactor wallet connect instance to use state variables (#4)

Part of [laconicd testnet validator enrollment](https://www.notion.so/laconicd-testnet-validator-enrollment-6fc1d3cafcc64fef8c5ed3affa27c675)
- Refactor `web3wallet` variable into a state variable

Co-authored-by: Adw8 <adwaitgharpure@gmail.com>
Reviewed-on: cerc-io/laconic-wallet-web#4

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "@cerc-io/registry-sdk": "^0.2.3",
+    "@cerc-io/registry-sdk": "^0.2.4",
     "@cosmjs/amino": "^0.32.3",
     "@cosmjs/crypto": "^0.32.3",
     "@cosmjs/proto-signing": "^0.32.3",