chore(oas): explicitly declare type:object on schemas with properties (#2712)

### What

OAS: Explicitly declare type:object on schemas with properties.

### Why

While not officially required, schemas with properties should have their type explicitly declared as "object". Omitting the type translates to type: any with properties XYZ. The ambiguity can lead to issues when using code generators.

### How

Multiple regex searches to identify schemas missing type: object. Manually edit each schema. Spot check generated OAS.

### Testing
- Ran OAS validator.
- Ran docs build script

### Proof
![Screen Shot 2022-12-01 at 1 46 13 PM](https://user-images.githubusercontent.com/116003638/205137671-7a6770dd-4f9b-456c-99a6-ac654f6d0f59.png)


RESOLVES CORE-847

packages/medusa/src/models/note.ts

@@ -46,6 +46,7 @@ export class Note extends SoftDeletableEntity {
  * title: "Note"
  * description: "Notes are elements which we can use in association with different resources to allow users to describe additional information in relation to these."
  * x-resourceId: note
+ * type: object
  * required:
  *   - value
  *   - resource_type