- the C fonts handling will be private impl used only in `prodtest` and
`bootloader_ci`
- use "bootloader_ci" as a separate stage to distinguish fonts
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This commit removes the usage of macros for font data definitions.
Instead, it includes data as const structs of newly introduced
font_info_t type.
[no changelog]
refactor(core): use font_id_t instead of plain int
[no changelog]
