Update the UI to include a switch that allows users to toggle between displaying time totals in hours (h) or days (j). When in days view, totals are rounded up with 8 hours equaling 1 day. This change affects the display of row totals, column totals, and the grand total. Replit-Commit-Author: Agent Replit-Commit-Session-Id: 55837015-10e9-4be9-b857-7f5e6be73772 Replit-Commit-Checkpoint-Type: full_checkpoint Replit-Commit-Event-Id: 22ef23e4-98ff-4918-acea-488d8cc9708f Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1cc377db-7ea0-49f2-97ce-c3e87e0228cc/55837015-10e9-4be9-b857-7f5e6be73772/qXEnLes Replit-Helium-Checkpoint-Created: true