test(explorer): update siacoin collateral regex for 0 SC case

apps/explorer-e2e/src/fixtures/constants.ts

@@ -22,7 +22,7 @@ export const HOST_SETTINGS_PATTERNS = [
   '\\b\\d+\\s?(days?|months?|years?)\\b', // 6 months
   '^\\$\\d+(?:\\.\\d+)?$', // $4.50
   '(\\$\\d+(?:\\.\\d+)?|\\d+(?:\\.\\d+)?\\s?[A-Z]{2})\\/million', // $0.0045 SC/million
-  '^\\d+(?:\\.\\d+)?\\s?(KS|mS)$', // 1.000 KS/mS
+  '^(\\d+(?:\\.\\d+)?|0)\\s?(KS|mS|SC)$', // 1.000 KS, 200.000 mS, 0 SC
   '\\b\\d+\\s?blocks\\b', // 25920 blocks
   '^(6553[0-5]|(655[0-2][0-9]|64[0-9]{3}|6[0-3][0-9]{2}|[1-5]?[0-9]{0,4}))$', // 9883
   '^\\d{1,16}$', // 2592000000000000