fix: do not show non-numeric warning for scientific notation
fix: do not show non-numeric warning for scientific notation

When importing data, there are client-side warnings that check if a value is a number. We have plenty of scientific notation numbers in our database and they are handled fine, so I'm allowing scientific notation in the regex that checks for numbers.

owid/owid-grapher,owid/owid-grapher,owid/owid-grapher,owid/owid-grapher,owid/owid-grapher