UI Component: Connection UI

[iamonuwa]

Is your feature request related to a problem? Please describe. As a user, I want to know what is happening when am opening the app

Describe the solution you'd like A connection UI will notify the user what is currently happening. If successful will take the user to the dashboard else will show a connection error UI.

See connecting to spacemesh network Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here. Web UI Mobile UI

Cross-platform components should be put in a shared folder

See CONTRIBUTING.md for contribution guidelines