perf: switch to avif

Author: gfauredev

README.md

@@ -16,8 +16,8 @@
   ],
   "category": "strength",
   "images": [
-    "3_4_sit_up/0.jpg",
-    "3_4_sit_up/1.jpg"
+    "3_4_sit_up/0.avif",
+    "3_4_sit_up/1.avif"
   ],
   "id": "3_4_sit_up"
 }

exercises/3_4_sit_up.json

@@ -17,8 +17,8 @@
   ],
   "category": "stretching",
   "images": [
-    "90_90_hamstring/0.jpg",
-    "90_90_hamstring/1.jpg"
+    "90_90_hamstring/0.avif",
+    "90_90_hamstring/1.avif"
   ],
   "id": "90_90_hamstring"
 }