v2.8.0: Update Data Depot Navigation

What's Changed

• refactor: navigation for "Data Depot", a la Four Kitchens by @wesleyboar in #172
• feat: content polish from PR #155 by @wesleyboar in #173
• refactor: move "… Exp. Facilities" to "Resources …" by @wesleyboar in #179
• fix: delete empty Hybrid Simulation guide by @wesleyboar in #182
• navigation for "Data Depot", a la DesignSafe by @wesleyboar in #177

Content Contributors

• @mesteva made their content contribution in #172, #177, #179
• @cs-jansen made their content contribution in #172, #177, #182
• @cockerilltim made their content contribution in #177
• @heddabedda made their content contribution in #177

Full Changelog: v2.7.0...v2.8.0