Our user's name is Chandler.
Chandler should be able to pan and zoom a screen that displays all Inscriptions, showing each one at the location where it was created.
Chandler should be able to add a new Inscription by clicking somewhere on the Canvas, revealing an InscriptionBuilder UI that allows them to add an new positioned Inscription.
This is located in Model.mmd.
User should be able to submit new Inscriptions to a single Canvas.
Check after every Inscription added if we need to expand the inscriptionRange. To start, let's expand the range to all borders of the outermost Inscriptions. In other words, the outermost Inscriptions should butt up against the walls. This would result in a Canvas that grows to fit the content added.