[Icons] Add support for suffixes

[seb-jean]

Q	A
Bug fix?	no
New feature?	yes
Deprecations?	no
Documentation?	no
Issues	Fix #3312
License	MIT

This feature allows configuring icon attributes based on icon name suffixes. This is particularly useful for icon sets like Heroicons that use suffixes to distinguish icon variants (e.g., arrow-right-solid, arrow-right-20-solid, etc).

Example configuration:

ux_icons:
    icon_sets:
        heroicons:
            icon_attributes:
                data-slot: 'icon'
            suffixes:
                16-solid:
                    icon_attributes:
                        fill: 'currentColor'
                20-solid:
                    icon_attributes:
                        fill: 'currentColor'
                solid:
                    icon_attributes:
                        fill: 'currentColor'
                '':
                    icon_attributes:
                        stroke: 'currentColor'
                        stroke-width: 1.5
                        fill: 'none'

Suffixes are automatically sorted by length (longest first) to ensure more specific suffixes like 20-solid match before solid.