Be able to connect wallet to Shopify extension for merchants

## Connecting wallet for merchants

**Description**: As a Shopify user, I want to be able to connect my existing wallet so that I can buy tokens (recharge) and sell them to my clients.

### Acceptance Criteria:

1. There should be a connect wallet button on the wallet page
2. The button should lead to a form
3. The form should have 2 input fields: one for the wallet ID and one for the password
4. There should be a “Connect” button that is disabled until both fields are filled, and sends a request to the Greenstand servers when clicked
5. If the details are incorrect, an error message in red should show up below the inputs, explaining that the details are incorrect
6. Any other errors should be gracefully handled with an error message and guidance to “come back later” or to send a complaint to Greenstand.
7. If the user enters valid credentials, it should redirect them to the wallet page where the page should have changed to show the wallet ID, the number of tokens, and allow for tokens to be bought.
8. The page should contain a note explaining how to create a new wallet externally (without using the extension to create one).

**Current release**: In development.

**Attached image**: None.