Fix scroll when making exchange request #560
Description
When submitting an exchange request, the Submit button is sometimes not visible due to layout or scrolling issues.
Way to do it
- Go to the Exchange sidebar container (src/pages/Exchange.tsx) and allow it to scroll vertically instead of hiding overflow.
- Then go to the Create Request layout (src/components/exchange/requests/issue/CreateRequest.tsx) and make sure the header stays fixed while the inner content scrolls independently.
