remove leading /

Author: sven-hash

src/utils/utils.ts

@@ -12,8 +12,8 @@ import { useEffect, useMemo, useState } from 'react'
 const mainnet_node_url = 'https://node.mainnet.alephium.org'
 const testnet_node_url = 'https://node.testnet.alephium.org'
 const devnet_node_url = 'http://127.0.0.1:22973'
-const mainnet_explorer_backend_url = 'https://backend.mainnet.alephium.org/'
-const testnet_explorer_backend_url = 'https://backend.mainnet.alephium.org/'
+const mainnet_explorer_backend_url = 'https://backend.mainnet.alephium.org'
+const testnet_explorer_backend_url = 'https://backend.mainnet.alephium.org'
 const devnet_explorer_backend_url = 'http://127.0.0.1:9090'
 const mainnet_explorer_url = 'https://explorer.alephium.org'
 const testnet_explorer_url = 'https://testnet.alephium.org'