Add optional "Additional fonts" selection to Applications menu

[Softer]

Closes #4412

PR Description:

Adds a multi-select "Additional fonts" option to the Applications menu, allowing users to install common font packages during installation:

• noto-fonts (Unicode font coverage for most languages)
• noto-fonts-emoji (color emoji for browsers and apps)
• noto-fonts-cjk (Chinese, Japanese, Korean characters)

Nothing is pre-selected - users pick what they need or skip entirely. Follows the same pattern as Audio, Bluetooth, and Firewall applications.

Tests and Checks

• Open Applications -> Additional fonts -> select one or more -> install completes with packages
• Skip fonts entirely -> no font packages installed
• Save/load config with fonts_config via --config

[exilonium]

lgtm

[svartkanin]

Thnks for the effort, I'll need some time to test it properly

[svartkanin]

Can we move this into the FontPackage itself I think that will make this more readable with a

class FontPackage(StrEnum):
...
	def description(self) -> str:
		match self:
			case FontPackage.NOTO:
				...
			case FontPackage.EMOJI:
				...
			case FontPackage.CJK:
				...

and then

	items = [MenuItem(f.description(), value=f) for f in FontPackage]
	group = MenuItemGroup(items)

there is also a helper function

MenuItemGroup.from_enum(FontPackage)

but that won't handle the custom description part, so we could enhance that with

	@classmethod
	def from_enum(
		cls,
		enum_cls: type[Enum],
		sort_items: bool = False,
		preset: Enum | None = None,
	) -> Self:
		text = elem.description() if hasattr(enum_cls, 'description') else elem.value
		items = [MenuItem(text, value=elem) for elem in enum_cls]

or something along those lines