Portal Text Fix

The following update was published by the Radiogram portal creator Jonathan, K1RFD:

The Portal has been updated so that any newlines in free-form text are now converted to spaces.

This aims to solve issues with multi-line text which is pasted into the text box, or if the submitter inserts newlines while typing a message.

Previously, newlines were being stripped, causing the last word of one line to be joined with the first word of the next line.