Temporary snap marker creation should ignore spaces in coordinates

[killakalle]

To reproduce

• Open Google Maps
• Click on the map to create a marker
• Copy the coordinates, e.g. "40.094042, -0.018727"

• theCrag: Open the crag Locate menu
• Paste the coordinates into temporary snap marker field

• Click "Temporary Snap Marker"

Expected

• Temporary snap marker created
• (ignore spaces before, after and between coordinate values)

Actual

• Syntax error
• Difficult for average user to find out what the issue is

To work around the problem, you have to remove the space between the values

• does not work: "40.094042, -0.018727"
• works: "40.094042,-0.018727"

This is unnecessarily restrictive with poor user feedback. I believe this used to work in the past because I've always just copied the values straight from Google Maps without changing them (unless Google Maps changed their format recently)