Implement in memory cache to store roadmap title against roadmap id for faster OG generation

[thatbeautifuldream]

Description

The problem with roadmap/:id page is that when we seek an OG image the page tries to call the db to featch the title which takes some tome to query and return back so that the OG can be generated.

Additional Information

We will need to fix that with the discussed Cache implementation so that there are pre-populated entries that can be hit when we try to access these OG images.