chore: replacing USDT

Author: henrypalacios

src/tokens/base.json

@@ -81,14 +81,6 @@
     "chainId": 8453,
     "logoURI": "https://raw.githubusercontent.com/QuickSwap/quickswap-default-token-list/main/assets/QUICK.webp"
   },
-  {
-    "name": "retard",
-    "address": "0xFA1c790f96bDe6DfFfa2860b794A096E8d85Bb07",
-    "symbol": "RETARD",
-    "decimals": 18,
-    "chainId": 8453,
-    "logoURI": "https://dd.dexscreener.com/ds-data/tokens/base/0xfa1c790f96bde6dfffa2860b794a096e8d85bb07.png?size=lg&key=0385a9"
-  },
   {
     "name": "Based Pepe",
     "address": "0x52b492a33E447Cdb854c7FC19F1e57E8BfA1777D",

src/tokens/mantra.json

@@ -19,7 +19,7 @@
   },
   {
     "name": "Tether USD",
-    "address": "0x680e8ECB908A2040232ef139A0A52cbE47b9F15B",
+    "address": "0x3806640578b710d8480910bF51510bc538d2F51A",
     "symbol": "USDT",
     "decimals": 6,
     "chainId": 5888,