Integrate wallet connect (#2)

* Configure stack navigation to display header

* Use wallet connect to connect with dApps

* Replace react-native alerts with js alerts

* Add example env file

* Remove unnecessary code

* Make UI changes

* Uncomment required code

* Remove unnecessary dependencies

* Remove any type

* Fix indentation

---------

Co-authored-by: Shreerang Kale <shreerangkale@gmail.com>
Co-authored-by: Nabarun <nabarun@deepstacksoft.com>

.gitignore

@@ -21,3 +21,5 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+.env