Fixes#226Fixes#383
Added a simple check to ensure that swap rates exist so we don't get a NaN error, which would be confusing to users.
Instead, the form is hidden and a spinner is shown until the bityRates are ready for the user.
* adds spinner while fetching
* added error on top of input
* removed classnames prop and added cn
* added simple err mssge
* css fixes and disabled button
* better err mssge generation and fixed swap details
* minor typo
* added redux notification on unreachable error
* minheight for err message and swap update on redux change
* fixed formatting and removed className prop
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