feat: add icon set with size variants

Added icons:
- Arrow2Icon
- BinIcon
- BurgerIcon
- CalendarIcon
- CheckIcon
- CloseIcon
- CodeIcon
- CubeIcon
- DownloadIcon
- FilterIcon
- HelpIcon
- HomeIcon
- LinkIcon
- MinusIcon
- MoreIcon
- OverviewIcon
- PlusIcon
- ProfileIcon
- SearchIcon
- SettingsIcon
- ShareIcon
- ShieldIcon
- SortIcon
- StatsIcon
- UploadIcon

Available sizes:
- 16px
- 24px
- 32px

SortIcon variants:
- default
- ascend
- descend

Notes:
- Added a dedicated icon grid preview in the design system page
- Verified consistency across all supported sizes

src/components/Icons/download/svgs/download-16.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8.00001 3H9.67067V8.01199H11.759L8.00001 11.771M8.00001 3H6.32934V8.01199H4.24101L8.00001 11.771" fill="#F4F2EF"/>
+<path d="M8.00001 3H9.67067V8.01199H11.759L8.00001 11.771L4.24101 8.01199H6.32934V3H8.00001Z" stroke="#F4F2EF" stroke-width="0.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M4.72905 13.5H11.271" stroke="#F4F2EF" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>