✨Fetch aggregator contract addres from github repo

src/hooks/useAggregator.tsx

@@ -1,5 +1,6 @@
 import { SorobanContextType, useSorobanReact } from '@soroban-react/core';
 import { useEffect, useState } from 'react';
+import axios from 'axios';
 
 const shouldUseAggregator = process.env.NEXT_PUBLIC_AGGREGATOR_ENABLED === 'true';
 
@@ -11,20 +12,23 @@ export const useAggregator = () => {
   const [address, setAddress] = useState<string>();
   const [isEnabled, setIsAggregatorEnabled] = useState<boolean>(false);
 
-  useEffect(() => {
-    if (!sorobanContext) return;
 
-    if (activeChain?.id == 'mainnet') {
-      //TODO: Add mainnet aggregator address
-      setAddress('CA4VZX7N577XGPSKDG4RT24CZ6XGR37TM2652SO2AASERVUWP72N4UGZ');
-      setIsAggregatorEnabled(false && shouldUseAggregator);
-    } else if (activeChain?.id == 'testnet') {
-      setAddress('CA4VZX7N577XGPSKDG4RT24CZ6XGR37TM2652SO2AASERVUWP72N4UGZ');
-      setIsAggregatorEnabled(true && shouldUseAggregator);
-    } else {
-      setAddress('CA4VZX7N577XGPSKDG4RT24CZ6XGR37TM2652SO2AASERVUWP72N4UGZ');
-      setIsAggregatorEnabled(false && shouldUseAggregator);
-    }
+  useEffect(() => {
+    const setAggregatorData = async () => {
+      if (!sorobanContext) return;
+      const { data } = await axios.get(
+        `https://raw.githubusercontent.com/soroswap/aggregator/refs/heads/main/public/${activeChain?.id}.contracts.json`
+      ).catch((error) => {
+        console.error('Error fetching aggregator data', error);
+        console.warn('No address found Aggregator is disabled');
+        setIsAggregatorEnabled(false);
+        return { data: { ids: { aggregator: '' } } };
+      });
+      const aggregatorAddress = data.ids.aggregator;
+      setAddress(aggregatorAddress);
+      setIsAggregatorEnabled(shouldUseAggregator && !!aggregatorAddress);
+    };
+    setAggregatorData();
   }, [activeChain?.id, sorobanContext]);
 
   return { address, isEnabled };