fix: revert the revert base network support for blockaid validations (#2

… (#23918)

…3777)"

This reverts commit 76a6897.


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app/scripts/lib/ppom/ppom-middleware.ts

@@ -31,7 +31,7 @@ const CONFIRMATION_METHODS = Object.freeze([
 export const SUPPORTED_CHAIN_IDS: Hex[] = [
   CHAIN_IDS.ARBITRUM,
   CHAIN_IDS.AVALANCHE,
-  // CHAIN_IDS.BASE,
+  CHAIN_IDS.BASE,
   CHAIN_IDS.BSC,
   CHAIN_IDS.LINEA_MAINNET,
   CHAIN_IDS.MAINNET,