feat(chains): add chain icons for new chains

Add icons for XLM, XLMT, Sonic, Union, BTC testnet, BCH, Avalanche testnet,
and sync missing entries from jsinfo-ui (polygona, bnb, bera, hyperliquid).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: nimrod-teich

src/lib/icons/data/chain-icons.ts

@@ -173,4 +173,20 @@ export const chainDictionary: { [key: string]: ChainInfo } = {
     secret2t: { name: "Secret Testnet", icon: "/icons/secret.png" },
     hedera: { name: "Hedera", icon: "/icons/hedera.svg" },
     hederat: { name: "Hedera Testnet", icon: "/icons/hedera.svg" },
+    polygona: { name: "Polygon", icon: "/icons/polygon-pos.svg" },
+    bnb: { name: "BNB Chain", icon: "/icons/binance-smart-chain.svg" },
+    bnt: { name: "BNB Chain Testnet", icon: "/icons/binance-smart-chain.svg" },
+    bera: { name: "Berachain", icon: "/icons/berachain-icon.webp" },
+    berat: { name: "Berachain Testnet", icon: "/icons/berachain-icon.webp" },
+    hyperliquid: { name: "Hyperliquid", icon: "/icons/HL-green.svg" },
+    hyperliquidt: { name: "Hyperliquid Testnet", icon: "/icons/HL-green.svg" },
+    xlm: { name: "Stellar", icon: "/icons/stellar.svg" },
+    xlmt: { name: "Stellar Testnet", icon: "/icons/stellar.svg" },
+    sonic: { name: "Sonic", icon: "/icons/sonic.svg" },
+    union: { name: "Union", icon: "/icons/union.svg" },
+    uniont: { name: "Union Testnet", icon: "/icons/union.svg" },
+    btct: { name: "Bitcoin Testnet", icon: "/icons/bitcoin.svg" },
+    bch: { name: "Bitcoin Cash", icon: "/icons/bitcoincash.svg" },
+    bcht: { name: "Bitcoin Cash Testnet", icon: "/icons/bitcoincash.svg" },
+    avaxt: { name: "Avalanche Testnet", icon: "/icons/avalanche.svg" },
 };