chore(oas): [18/n] improve oas schemas (#9311)

Improve OAS schemas [18/n]

www/utils/packages/docs-generator/src/classes/helpers/schema-factory.ts

@@ -37,6 +37,26 @@ class SchemaFactory {
     BigNumberValue: {
       type: "number",
     },
+    File: {
+      type: "object",
+      description: "A File to upload.",
+      externalDocs: {
+        url: "https://developer.mozilla.org/en-US/docs/Web/API/File",
+        description: "Learn more about the File API",
+      },
+    },
+    FileList: {
+      type: "array",
+      description: "list of files to upload.",
+      items: {
+        type: "object",
+        description: "A File to upload.",
+        externalDocs: {
+          url: "https://developer.mozilla.org/en-US/docs/Web/API/File",
+          description: "Learn more about the File API",
+        },
+      },
+    },
   }
   /**
    * Schemas used only for response types.