Overhaul STPUAS Typst Document Template

Update for more consistent design and easier use.

Adding Multi-Language (de & en).

Changing all images to use svg.

Changing authors to failsave parameters.

Detailed Changes:

• deprecate authors-short
• set document properties
• add table of content
• add language parameter
• rename doc into body
• update fhstp link to use https
• update fhstp banner to use svg
• split banner into core components
• adapt margins for a more consistent look
• Set Helvetica to be the primary font
• add translation dictionary
• delete fhstp.png
• update titlepage to use grid
• update to consistent kebab-case