Migration Contract Deployment for 480 (#812)

## Add new chain

Please fill the following form:

Provide the Chain ID (Only 1 chain id per PR).
- Chain_ID: 480

Provide RPC URL for the chain (should be able to query atleast 10
requests per minute for automatic PR check).
- RPC_URL: https://worldchain-mainnet.g.alchemy.com/public

Relevant information:
Add any other relevant information like blockexplorer, any annotation...

src/assets/v1.4.1/safe_migration.json

@@ -15,6 +15,7 @@
     "100": "canonical",
     "137": "canonical",
     "196": "canonical",
+    "480": "canonical",
     "1101": "canonical",
     "1337": "canonical",
     "5000": "canonical",

src/assets/v1.4.1/safe_to_l2_migration.json

@@ -15,6 +15,7 @@
     "100": "canonical",
     "137": "canonical",
     "196": "canonical",
+    "480": "canonical",
     "1101": "canonical",
     "1337": "canonical",
     "5000": "canonical",

src/assets/v1.4.1/safe_to_l2_setup.json

@@ -15,6 +15,7 @@
     "100": "canonical",
     "137": "canonical",
     "196": "canonical",
+    "480": "canonical",
     "1101": "canonical",
     "1337": "canonical",
     "5000": "canonical",