Fix wireframe sidebar layout and title formatting

- Remove horizontal separator in book sidebar to show it as one joined section
- Change "Robot Building" to "TITLE: Robot Building" for clarity
- Update both main wireframe and detailed breakdown sections

Co-authored-by: dannystaple <426859+dannystaple@users.noreply.github.com>

Author: Copilot

docs/archive-page-wireframe.md

@@ -17,10 +17,8 @@ This wireframe shows the visual layout structure of the Orionrobots archive page
 ├─────────────────────────────────────────────┼─────────────────────┤
 │ [🔗📧📱]                                   │ [📚]                │ ← Social Sharing | Book Sidebar
 │                                             │ Robotics at Home    │
-├─────────────────────────────────────────────┼─────────────────────┤
-│ Robot Building                              │ with Raspberry Pi   │ ← Page Title | Book Promotion
-├─────────────────────────────────────────────┼─────────────────────┤
-│                                             │ Pico                │
+├─────────────────────────────────────────────┤ with Raspberry Pi   │ ← Page Title | Book Promotion
+│ TITLE: Robot Building                       │ Pico                │
 │ FEATURED POSTS (First 4 with excerpts)     │                     │
 ├─────────────────────────────────────────────┼─────────────────────┤
 │ [📷] 30 Aug 2025 » Building Your First     │ [Book Cover Image]  │ ← Featured Post Item
@@ -109,7 +107,7 @@ This wireframe shows the visual layout structure of the Orionrobots archive page
 │ └───────────────────────┘ │ │ Robotics at Home with Pi Pico  │ │
 │                           │ │ [Buy Now Button]               │ │
 │ ┌─ PAGE HEADER ─────────┐ │ │                                │ │
-│ │ Robot Building        │ │ │ [Book Cover Image]             │ │
+│ │ TITLE: Robot Building │ │ │ [Book Cover Image]             │ │
 │ └───────────────────────┘ │ │ Learn Robotics Programming 2nd │ │
 │                           │ │ [Buy Now Button]               │ │
 └─────────────────────────────────────────────────────────────────┘