Remove deprecated @types/sharp devDependency (sharp ships its own types) (#8336)

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pubkey <8926560+pubkey@users.noreply.github.com>

Author: Copilot

package.json

@@ -638,7 +638,6 @@
     "@types/react": "19.2.14",
     "@types/request": "2.48.13",
     "@types/request-promise-native": "1.0.21",
-    "@types/sharp": "0.32.0",
     "@types/source-map-support": "0.5.10",
     "@typescript-eslint/eslint-plugin": "8.58.0",
     "@typescript-eslint/parser": "8.58.0",