Added endpoint to search both file and dataset.

[ddey2]

No description provided.

[longshuicy]

just left one comment about route;
because in reactivesearch you have to specify a baseapp name. so it has to be something like /xxxx/_msearch.

The Documentation suggesting use a comma separate indexes so in this case it's /file,dataset/_msearch

[longshuicy]

In addition, could we add more fields to file
I would definitely need

dataset_id: PyObjectId
folder_id: Optional[PyObjectId]

it would be also nice to have

bytes: int = 0
content_type: str = "N/A"

[ddey2]

Sure. I can add those fields. Also, if you need anything else, let me know. I will create a separate PR for adding the fields.

[longshuicy]

Sure. I can add those fields. Also, if you need anything else, let me know. I will create a separate PR for adding the fields.

Actually do you mind I create those additional fields in the PR i'm working on? that might be more efficient

[ddey2]

@longshuicy Feel free to add those fields.