Search on document conent

Enable searching on document content, not just on the title/metadata.

Support: Promapp only searches the title and other metadata entered into Promapp when uploading the Document. Not the Document contents.

Feedback: this is the single biggest frustration, and consequently the biggest factor in why to move away from ProMapp. i.e. a lot of time is spent trying to guess the file name – so staff end up just copying it into SharePoint, where they can search on the document content much easier.