feat(Sidebar): added backgroundcolor for active category and scroll-to logic for active tool

[0DarkPhoenix]

• Added a background color to highlight an active category
• Added scroll-to logic for scrolling to an active tool on mount and url path change
• Restored the old behaviour of the IT-Tools element where it sticks to the top of the sidebar when scrolling, and in compensation reduced the height of that element from 150px to 125px to see more tools in the sidebar.
• Reduced the bottom padding of the side bar from 200px to 50px to fix an issue where you could slightly scroll the sidebar when all categories were closed
• Improved diversity and correctness of the icons for multiple tools

Old:

2026-01-31-16-40-32.mp4

New:

2026-01-31-16-41-29.mp4

Example when searching a tool:

2026-01-31-16-42-27.-.Trim.mp4