Refactor view modules for improved readability and consistency

- Updated markdown rendering logic to use more concise methods for obtaining vector lengths.
- Changed review status display to use the correct flag from settings.
- Cleaned up sidebar rendering code for better formatting and readability.
- Enhanced status bar rendering with improved string formatting and consistent style application.
- Refined workflow panel rendering, ensuring consistent style usage and improved readability.
- Added architecture overview and detailed documentation for backend, data, dependencies, and frontend structures.

src/resources.rs

@@ -1,6 +1,5 @@
 //! Compile-time embedded text resources: the system prompt, tool descriptions,
 //! and the in-app help screen shown on Ctrl+H.
-
 pub const SYSTEM_PROMPT: &str = include_str!("../src-misc/system-prompt.txt");
 pub const SYSTEM_TOOLS: &str = include_str!("../src-misc/system-tools.txt");