refactor(payload): extract ai extensions to @mintel/payload-ai package

apps/web/src/payload/blocks/MemeCardBlock.ts

@@ -28,7 +28,7 @@ export const MemeCardBlock: MintelBlock = {
           "The template ID from memegen.link (e.g. 'drake', 'disastergirl')",
         components: {
           afterInput: [
-            "@/src/payload/components/FieldGenerators/AiFieldButton#AiFieldButton",
+            "@mintel/payload-ai/components/AiFieldButton#AiFieldButton",
           ],
         },
       },
@@ -42,7 +42,7 @@ export const MemeCardBlock: MintelBlock = {
           "Pipe-separated captions for the meme (e.g. 'Legacy Code|Mintel Stack'). Maximum 6 words per line.",
         components: {
           afterInput: [
-            "@/src/payload/components/FieldGenerators/AiFieldButton#AiFieldButton",
+            "@mintel/payload-ai/components/AiFieldButton#AiFieldButton",
           ],
         },
       },