[UX] Web app for marketing site and management portal

[flanakin]

Marketing site

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1. Add react-ts Vite template #982
   Needs: Review 👀 Tool: Web app +2
   

   
2. [UX] Clean up Vite boilerplate content #1021
   Micro PR 🔬 Tool: Web app +2
   
3. [UX] Add CSS reset #1031
   Tool: Web app Type: Feature 💎 +2
   
4. [UX] Migrate existing markdown content to TSX pages #1056
   Tool: Web app Type: Feature 💎 +2
   
5. [UX] Home page layout #1082
   Tool: Web app Type: Feature 💎 +2
   
6. [UX] Add page navigation
7. [UX] Script to deploy to GH Pages
8. [UX] Test framework #1058
   Tool: Web app Type: Feature 💎 +2
   
9. [UX] GitHub action to run tests
10. [UX] Telemetry
11. [UX] Add Fluent UI library #1081
    Tool: Web app Type: Feature 💎 +2
    
12. [UX] Replace all icons used for the different tools #1386
    Tool: Web app +1
13. [UX] Create a dedicated page for learning resources

Management portal

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1. Add authentication #1387
   Tool: Web app +1
2. Hubs: List of instances
3. Hubs: Create form
4. Hubs: Details page (essentials, scopes, datasets)
5. Hubs: Edit configuration settings form
6. Hubs: Add scopes
7. Hubs: Remove scopes
8. Hubs: Data health page (scopes/dataset completeness)
9. Hubs: Backfill data