Increment field id in the print area

[ofostier]

With this Fix we can now print more than 1000 card without error & lags

[bndw]

Do this logic once outside of the return and then reuse it everywhere, maybe something like:

const keyid = props.keyid || '';
const suffixKeyID = (prefix) => `${prefix}-${keyid}`

...

return (
  <textarea>
    id={suffixKeyID('ssid')}
     ...
  </textarea>
  <otherthing>
     id={suffixKeyID('eapmethod')}
     ...
  </otherthing>
)

[ofostier]

Changes made.
Better logic but maybe a lack performance with more than 400 cards to print