fix: compliance issues, remove pnpm-lock.yaml on frontend folder, and remove sharp

Signed-off-by: Joana Maia <jmaia@contractor.linuxfoundation.org>

Author: joanagmaia

frontend/package.json

@@ -66,7 +66,6 @@
     "pinia": "^3.0.4",
     "pluralize": "^8.0.0",
     "primevue": "^4.5.4",
-    "sharp": "^0.34.5",
     "slugify": "^1.6.6",
     "vitepress": "^1.6.4",
     "vue": "^3.5.27",