add additional input widths

Author: Tomdango

src/util/types/NHSUKTypes.ts

@@ -1,6 +1,6 @@
 export type NHSUKSize = 's' | 'm' | 'l' | 'xl';
 
-export type InputWidth = '2' | '3' | '4' | '5' | '10';
+export type InputWidth = '2' | '3' | '4' | '5' | '10' | '20' | '30' | 2 | 3 | 4 | 5 | 10 | 20 | 30;
 
 export type CareCardType = 'non-urgent' | 'urgent' | 'immediate';