fix(src): add cache for eslint

Author: dineshpinto

.gitignore

@@ -22,6 +22,7 @@ yarn-error.log*
 .vscode
 .idea
 .lycheecache
+.eslintcache
 
 flare-smart-contracts-v2/
 flare-smart-contracts/

package.json

@@ -18,7 +18,7 @@
     "format": "prettier --write . && prettier --write --plugin=prettier-plugin-solidity 'examples/developer-hub-solidity/**/*.sol' && npm run format --prefix examples/developer-hub-javascript",
     "format:diff": "prettier --list-different .",
     "format:check": "prettier --check \"**/*.{js,jsx,ts,tsx,md,mdx}\"",
-    "lint": "npx eslint ."
+    "lint": "npx eslint . --cache --cache-location .eslintcache"
   },
   "dependencies": {
     "@docusaurus/core": "^3.9.2",