Determine URI paths for each page

[neatonk]

Many questions to consider here:

• How much of the builder state should go in the url vs. memory/local storage?
• Which steps should cause a URI change and be navigable via browser history?
• Does each layer in the builder have a distinct URI?
• Etc.

Much of this will be answered while building the UI and assessing the tradeoffs.

[neatonk]

E.g.

/destroy  --> all-in-one construction page and pre-mint preview page, with construction state in memory.
/nft/[id] --> post mint page

OR

/destroy  --> construction page, all layers.
/mint     --> pre-mint preview page, with construction state in memory.
/nft/[id] --> post mint page

OR

/destroy/[n]  --> construction pages, one for each layer 1-5.
/mint/[0x...] --> pre-mint page with state in URL e.g. as hex encoded string.
/nft/[id] --> post mint page