Update Autonomys Taurus to Autonomys Chronos references (#7705)

* Update Autonomys Taurus to Autonomys Chronos references

* Update the file name to eip155-8700.json

* Keep references to the Autonomys Taurus Testnet, set status as deprecated

* Remove trailling / in explorer link

* Run prettier to address formatting issues

* Remove explorer link of the deprecated testnet

* Fix token short_name duplication

---------

Co-authored-by: Frederik Bolding <frederik.bolding@gmail.com>

Author: EmilFattakhov

_data/chains/eip155-490000.json

@@ -2,6 +2,7 @@
   "name": "Autonomys Taurus Testnet",
   "chain": "autonomys-taurus-testnet",
   "rpc": ["https://auto-evm.taurus.autonomys.xyz/ws"],
+  "status": "deprecated",
   "icon": "autonomys",
   "faucets": [],
   "nativeCurrency": {
@@ -11,15 +12,8 @@
   },
   "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
   "infoURL": "https://www.autonomys.xyz",
-  "shortName": "ATN",
+  "shortName": "ATN-deprecated",
   "chainId": 490000,
   "networkId": 490000,
-  "explorers": [
-    {
-      "name": "Autonomys Taurus Testnet Explorer",
-      "url": "https://blockscout.taurus.autonomys.xyz",
-      "icon": "blockscout",
-      "standard": "EIP3091"
-    }
-  ]
+  "explorers": []
 }

_data/chains/eip155-8700.json

@@ -0,0 +1,25 @@
+{
+  "name": "Autonomys Chronos Testnet",
+  "chain": "autonomys-chronos-testnet",
+  "rpc": ["https://auto-evm.chronos.autonomys.xyz/ws"],
+  "icon": "autonomys",
+  "faucets": [],
+  "nativeCurrency": {
+    "decimals": 18,
+    "name": "AI3",
+    "symbol": "AI3"
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://www.autonomys.xyz",
+  "shortName": "ATN",
+  "chainId": 8700,
+  "networkId": 8700,
+  "explorers": [
+    {
+      "name": "Autonomys Chronos EVM Testnet Explorer",
+      "url": "https://explorer.auto-evm.chronos.autonomys.xyz",
+      "icon": "blockscout",
+      "standard": "EIP3091"
+    }
+  ]
+}