refactor: standardize formatting and improve readability across core documents (#211)

### CHANGES

- Add newlines and spacing for improved readability
- Standardize instructional text for consistency
- Renumber lists within tasks for better clarity
- Add language identifiers to various code blocks
- Update placeholder text for improved consistency
- Adjust descriptions and wording in multiple files
- Update VS Code settings and dictionary words

.bmad-core/workflows/greenfield-fullstack.yml

@@ -106,7 +106,7 @@ workflow:
         A[Start: Greenfield Project] --> B{Project Complexity?}
         B -->|Complex/Production| C[analyst: project-brief.md]
         B -->|Simple/Prototype| D[analyst: focused project-brief.md]
-        
+
         C --> E[pm: prd.md]
         E --> F[ux-expert: front-end-spec.md]
         F --> F2{Generate v0 prompt?}
@@ -122,16 +122,16 @@ workflow:
         K -->|Yes| L[Return to relevant agent for fixes]
         K -->|No| M[Move to IDE Environment]
         L --> J
-        
+
         D --> N[pm: simple epic or story]
         N --> O[Move to IDE Environment]
-        
+
         C -.-> C1[Optional: brainstorming]
         C -.-> C2[Optional: market research]
         F -.-> F1[Optional: user research]
         G -.-> G1[Optional: technical research]
         D -.-> D1[Optional: brainstorming]
-        
+
         style M fill:#90EE90
         style O fill:#90EE90
         style F3 fill:#E6E6FA