[REFACTOR ]update wing_design documentation

Description

Update wing design config regarding:

• icao aerodrome reference code behaviour
• leading-/trailing-edge checks

Related Issue(s)

• N.A.

Other Changes

• N.A.

Screenshots/Logs

-N.A.

Testing Instructions

1. [Step 1: Checkout branch refactor/wing_design_documentation]
2. [Step 2: Run mkdocs serve]
3. [Step 3: Check local page]

Developer Checklist

• Code has been tested locally and/or in pipeline.
• (if applicable) documentation updated.
• (if applicable) impact of new dependencies reviewed and included in project.
• Merge conflicts resolved with the target branch.

Additional Notes

-N.A.