Improve project listing within docs

[gtsiolis]

Problem

Currently, projects listed within docs (Languages & Frameworks) use a table component which also has center alignment for all columns which can become an issue for project descriptions as well as the primary button action for each item.

Due to the button style conflict with the Edit in Gitpod button (see https://github.com/gitpod-io/website/issues/981) the Open in Gitpod buttons usually, if not always, look smaller which makes it unlcear if these are buttons.

These alignment and hierarchy issues mentioned above make starting a workspace for an example project unintuituve if not confusing.

Proposal

TBD (To be discussed)