Pretty up the Spreadsheet

The weapon generation/balance sheet probably needs a pass for usability/readability! It's a bit all over the place since the rework, so we probably need to tidy it up, make it look nice and give it a general usability pass.

The issue identifies the weapon generation/balance sheet as the work surface; start by locating that sheet and reviewing its current layout after the rework. Define the usability and readability changes with maintainers, then verify that the reorganized sheet is easier to navigate while preserving the balance data.

Written by the indexing model from the issue text.