Rebrand Xion -> Verona

Xion has rebranded to Verona. Testnet-repo counterpart to the merged
ping-pub/mainnet rebrand. Same chain, renamed listing entries with updated
display symbol and logo.

- chains/mainnet/xion.json -> verona.json
- chains/testnet/xion.json -> verona.json
- add logos/verona.png (750x750), remove orphaned logos/xion.png

chain_id, bech32 prefix (xion), and coingecko reference are unchanged.

Author: dpdanpittman

chains/mainnet/xion.json chains/mainnet/verona.jsonchains/mainnet/xion.json renamed to chains/mainnet/verona.json

@@ -1,5 +1,5 @@
 {
-  "chain_name": "xion",
+  "chain_name": "verona",
   "coingecko": "XION",
   "network_type": "mainnet",
   "rpc": [
@@ -35,14 +35,14 @@
   "coin_type": "118",
   "min_tx_fee": "100",
   "addr_prefix": "xion",
-  "logo": "./logos/xion.png",
+  "logo": "./logos/verona.png",
   "assets": [
     {
       "base": "uxion",
-      "symbol": "XION",
+      "symbol": "VERONA",
       "exponent": "6",
       "coingecko_id": "xion-2",
-      "logo": "./logos/xion.png"
+      "logo": "./logos/verona.png"
     },
     {
       "base": "ibc/0471F1C4E7AFD3F07702BEF6DC365268D64570F7C1FDC98EA6098DD6DE59817B",

chains/testnet/xion.json chains/testnet/verona.jsonchains/testnet/xion.json renamed to chains/testnet/verona.json

@@ -1,5 +1,5 @@
 {
-  "chain_name": "xion",
+  "chain_name": "verona",
   "coingecko": "XION",
   "network_type": "testnet",
   "rpc": [
@@ -35,14 +35,14 @@
   "coin_type": "118",
   "min_tx_fee": "100",
   "addr_prefix": "xion",
-  "logo": "/logos/xion.png",
+  "logo": "/logos/verona.png",
   "assets": [
     {
       "base": "uxion",
-      "symbol": "XION",
+      "symbol": "VERONA",
       "exponent": "6",
       "coingecko_id": "xion-2",
-      "logo": "/logos/xion.png"
+      "logo": "/logos/verona.png"
     },
     {
       "base": "ibc/13B2C536BB057AC79D5616B8EA1B9540EC1F2170718CAFF6F0083C966FFFED0B",