feat: UI/UX: Standardize headers, improve KIT features layout and fix visual bugs

[jalvaro-lks]

WHAT

This PR introduces several UI/UX enhancements, layout standardizations, and bug fixes to the ICHub.

Key modifications include:

• Header Standardization: Implemented a unified header design across all modules (Contact List, Catalog Parts, Serialized Parts, Passport Provisioning, etc.) to ensure visual consistency and consistent color coding.
• KIT Features Refinement: - Fixed the sidebar selection state when navigating from the root path.
  • Adjusted the alignment and centering of KIT cards for better visual balance.
  • Removed redundant hover effects (shadows) on feature icons within detail pages.
• Layout & Responsiveness: - Optimized KitDetailsPage by removing unnecessary scrollbars in both information and feature panels.
  • Improved responsiveness across different screen resolutions.
• Form Validation & UI Fixes:
  • Catalog Part Creation: Implemented validation logic to disable the "CREATE" button until all mandatory fields are populated.
  • Material Name Field: Fixed a visual bug where the mandatory asterisk (*) caused a layout shift/overlap with the "color palette" icon.
• Bug Fixes: - Resolved z-index issues where navigation buttons overlapped the "Available Features" deployable panel.
  • Fixed layout overflow where the "Available Features" panel would sit behind the header.
• Navigation: Redesigned the "Back" button in the Catalog Part details page to a more integrated bar-style design attached to the sidebar.

WHY

The goal of these changes is to enhance the overall professional look and feel of the ICHub. By standardizing headers and fixing layout inconsistencies, we provide a more stable and visually cohesive foundation. The new form validation improves data integrity by preventing empty submissions, while the UI fixes address critical navigation and depth (z-index) issues.

FURTHER NOTES

Catalog Parts New Header

BEFORE	AFTER

Catalog Part Creation (Button Validation & Material Icon Fix)

BEFORE	AFTER

Catalog Part Details Back Button

BEFORE	AFTER

Serialized Parts New Header

BEFORE	AFTER

Contact List New Header

BEFORE	AFTER

Passport Provisioning Colors

BEFORE	AFTER

Passport Consumption Colors

BEFORE	AFTER

KIT Features Page (Centering & Sidebar Fix)

BEFORE	AFTER

Kit Features Detail Page (Scroll & Hover Fix)

BEFORE	AFTER

Available Features Panel (Z-index & Header Fix)

BEFORE	AFTER

Closes #553