[feature]: Allow custom field to be rendered on card in overview

[falko100]

Is there an existing issue for this?

• I have searched the existing issues

Summary

We want to add our own custom property to the overview.
Estimate does not have a free number input version. We don't work in iterative steps, but we communicate price directly.

Why should this be worked on?

Great for general overview and clarity for guests.
Small feature with high value.

[makeplane]

Synced with Plane Workspace 🔄

[GIT-212] [feature]: Allow custom field to be rendered on card in overview