Feature: "I don't have a wallet" flow + Progress-bar fixup

[Adamj1232]

Description

This PR adds the configurable "I don't have a wallet" link to the sidebar of the connect modal along with fixing the progress bar to match the designs (specifically for desktop as mobile matched already)

The "I don't have a wallet" link is configurable within the connect object inside the onboard config

type ConnectModalOptions = {
  showSidebar?: boolean
  /**
   * Disabled close of the connect modal with background click and
   * hides the close button forcing an action from the connect modal
   */
  disableClose?: boolean // defaults to false
  /**If set to true, the last connected wallet will store in local storage.
   * Then on init, onboard will try to reconnect to that wallet with
   * no modals displayed
   */
  autoConnectLastWallet?: boolean // defaults to false
  /**
   * Customize the link for the `I don't have a wallet` flow shown on the
   * select wallet modal.
   * Defaults to `https://ethereum.org/en/wallets/find-wallet/#main-content`
   */
  iDontHaveAWalletLink?: string
}

Checklist

• The version field in package.json of the package you have made changes in is incremented following semantic versioning and using alpha release tagging
• The box that allows repo maintainers to update this PR is checked
• I tested locally to make sure this feature/fix works
• I have run yarn file-check, yarn type-check & yarn build to confirm there are not any associated errors
• This PR passes the Circle CI checks

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Name	Status	Preview	Comments	Updated
web3-onboard-docs	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Feb 21, 2023 at 6:33PM (UTC)

[leightkt]

@Adamj1232
Code overall is looking good- was able to add a custom link and also test the default link

When I test in the demo- the three dots below the "I don't have a wallet" link are not spacing as nicely as you in your demo pics:

[Adamj1232]

@katspaugh thanks for catching that! Needed to push the commit removing a sneaky single quote breaking everything! Should be good now

[leightkt]

Looks good- was able to test locally and add a custom link and test the default