Fix for textarea style issue (Bug #1385812)

Change-Id: I51f2b2f870c56f489c65abe114ef5744227d5d6a
Signed-off-by: Yuliya Bozhko <yuliya.bozhko@totaralms.com>
Merge "Fix for textarea style issue (Bug #1385812)" into 1.10_STABLE