fix: fix routing issues with send flow

[pete-watters]

Try out Leather build cc1aa60 — Extension build, Test report, Storybook, Chromatic

This PR fixes issues with the send flow not moving past Continue. I guess these problems were introduced in the containers PR although I thought that area was well tested manually and covered by automated tests.

I will investigate improving the tests but opening this PR right away as otherwise sending any tokens is not working.

[pete-watters]

The previously working relative paths now fail so I am using the location.pathname to prepend this route.

I think this may have stopped working as to move the Continue button to the footer, we had to change the form to use props.handleSubmit()

e.g. in BtcSendForm:

  return (
            <Form>
              <Card
                footer={
                  <Footer variant="card">
                    <Button
                      data-testid={SendCryptoAssetSelectors.PreviewSendTxBtn}
                      onClick={() => props.handleSubmit()}
                      type="submit"
                    >
                      Continue
                    </Button>
                    <AvailableBalance balance={formatMoney(btcBalance.balance)} />
                  </Footer>
                }
              >
                <CardContent dataTestId={SendCryptoAssetSelectors.SendForm}>
                  <AmountField
    

Before we had a lot of nested components doing this that drilled down a lot to a preview-button component