chore: rename okb token to eth:okb

TICKET: COIN-6593

Author: MohammedRyaan786

modules/statics/src/coins/erc20Coins.ts

@@ -4445,7 +4445,7 @@ export const erc20Coins = [
   ),
   erc20(
     '987fa929-39ff-40a2-9249-d7b3be9dc76d',
-    'okb',
+    'eth:okb',
     'OKB',
     18,
     '0x75231f58b43240c9718dd58b4967c5114342a86c',