Add Sidra Chain configuration and icon files (#6582)

- Created eip155-97453.json for Sidra Chain with details including RPC, native currency, and explorer information.
- Added sidrachain.json for the chain's icon with its IPFS URL and dimensions.
- Included the actual icon file in the iconsDownload directory.
- All test passed with ./gradlew run
- Formatted with npx prettier --write _data/*/*.json

Author: noumanmhd

_data/chains/eip155-97453.json

@@ -0,0 +1,25 @@
+{
+  "name": "Sidra Chain",
+  "chain": "SIDRA",
+  "icon": "sidrachain",
+  "rpc": ["https://node.sidrachain.com"],
+  "features": [{ "name": "EIP155" }],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Sidra Digital Asset",
+    "symbol": "SDA",
+    "decimals": 18
+  },
+  "infoURL": "https://www.sidrachain.com",
+  "shortName": "sidra",
+  "chainId": 97453,
+  "networkId": 97453,
+  "explorers": [
+    {
+      "name": "Sidra Chain Explorer",
+      "url": "https://ledger.sidrachain.com",
+      "icon": "sidrachain",
+      "standard": "EIP3091"
+    }
+  ]
+}

_data/icons/sidrachain.json

@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmfVnJSmiB1Ss3Sfhgc9JsZAbQ2RAofsgzYB1VqUNKNgLH",
+    "width": 512,
+    "height": 512,
+    "format": "png"
+  }
+]