Refactor site navigation and content structure
Closes #615 (closed)
Done:
- Rename "Value Assessment Framework" to "Impact Assessment Framework"
- Add "Paper & Digital Hybrid" page to Best Practices (splitting overloaded Transparency Graphs content)
- Rename "Chain of Custody" to "Mass Balance" in Best Practices
- Move Extensions Methodology page to Implementation Guidance section; hide remaining Extensions sub-pages
- Remove Industry and Government pages from Implementations Register (deferred for later)
Deferred / still to discuss:
- Meeting Archive placement (under General Meetings page — needs decision)
- Difference between Extensions Methodology and Extensions Implementation Guide — needs resolution
- Group Conformity Topic List, UNTP Ontology, and Performance Metric under a new "Core Vocabularies" page