feat: Improved placeholder and upload handling for images

pnpm-lock.yaml

@@ -150,6 +150,9 @@ importers:
       highlight.js:
         specifier: ^11.11.1
         version: 11.11.1
+      image-dimensions:
+        specifier: ^2.5.0
+        version: 2.5.0
       ioredis:
         specifier: ^5.4.1
         version: 5.4.1
@@ -6839,6 +6842,11 @@ packages:
   image-blob-reduce@3.0.1:
     resolution: {integrity: sha512-/VmmWgIryG/wcn4TVrV7cC4mlfUC/oyiKIfSg5eVM3Ten/c1c34RJhMYKCWTnoSMHSqXLt3tsrBR4Q2HInvN+Q==}
 
+  image-dimensions@2.5.0:
+    resolution: {integrity: sha512-CKZPHjAEtSg9lBV9eER0bhNn/yrY7cFEQEhkwjLhqLY+Na8lcP1pEyWsaGMGc8t2qbKWA/tuqbhFQpOKGN72Yw==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   image-size@0.5.5:
     resolution: {integrity: sha512-6TDAlDPZxUFCv+fuOkIoXT/V/f3Qbq8e37p+YOiYrUv3v9cc3/6x78VdfPgFVaB9dZYeLUfKgHRebpkm/oP2VQ==}
     engines: {node: '>=0.10.0'}
@@ -17647,6 +17655,8 @@ snapshots:
     dependencies:
       pica: 7.1.1
 
+  image-dimensions@2.5.0: {}
+
   image-size@0.5.5:
     optional: true