Add custom SQA entries specific to the electromagnetic module and improve defaults/initialization

[cticenhour]

This PR also makes adjustments to framework SQA docs and the templates for formatting and defaults as well as adding a new module option to the MooseDocs SQA initialization command.

Refs #15968 Refs #20693

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Job Coverage on 3b58c4a wanted to post the following:

Framework coverage

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Full coverage reports

Reports

• framework
• chemical_reactions
• combined
• contact
• electromagnetics
• external_petsc_solver
• fluid_properties
• fsi
• functional_expansion_tools
• geochemistry
• heat_conduction
• level_set
• misc
• navier_stokes
• peridynamics
• phase_field
• porous_flow
• ray_tracing
• rdg
• reactor
• richards
• solid_properties
• stochastic_tools
• tensor_mechanics
• thermal_hydraulics
• xfem

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