Original Sidebar + Triage Redesign

[BrendannnD]

This pull request has the base redesign with the original triage redesign, new sidebar, and footer redesign. Note that this is only the original redesign and it has since had many more updates (including further triage improvements, sidebar improvements, and redesigns for the rest of the pages). It also standardizes Python script execution to use python3 throughout the Java backend and utility code to fix errors trying to start servers. The most important changes are grouped below.

UI Redesign and Layout Updates:

• Introduced a new sidebar navigation by adding sidebar.scala.html and updating the main layout (main.scala.html) to use the sidebar instead of the old header, reorganizing page structure for better usability and accessibility. Added Google Fonts and Material Symbols for a modern look. [1] [2]
• Refactored the search partial to integrate with the sidebar, improve accessibility, and simplify code. Each page now has a unique search field ID and button with proper ARIA labels.
• Redesigned the footer for a cleaner appearance and better alignment with the new layout, including new CSS classes and improved structure.
• Updated the triage input button partial for improved styling and clarity, wrapping gender labels in a span and adding new CSS classes.

Backend Consistency and Python 3 Migration:

• Standardized all Java backend and utility code to use python3 instead of python when invoking Python scripts, ensuring compatibility with modern Python environments. [1] [2] [3] [4] [5]

[lab596]

maybe mention here in a todo so we remember to remove the femr.css after we are done

[lab596]

maybe we use the tailwind format for css?

[lab596]

Overall maybe lets not add underline on hover for icons