feat(app): Press on size or delta cell in ComparisonTable to show more information

[paularmstrong]

Problem

Sometimes when I'm digging into the table, I want to see more information about the artifact in the build or the delta (like all sizeKey changes, etc). There's currently no short way of doing that.

Solution

On press (click), a modal window could open that nicely formats the full Artifact or ArtifactDelta object (depending on which cell type).