Show Which Mods tooltips for Magic Menu spells

[Quantumyilmaz]

Summary

• hook the Magic Menu and temporarily add the existing Which Mods lore keyword to the first valid Magic Effect used by each of the player's learned spells before the menu builds its entries
• resolve the highlighted spell or power so the existing owning-plugin chain and name-limit formatting can be reused
• remove the temporary keywords when the menu closes and bump the plugin version to 1.0.5.0

Scope

This covers learned spells and powers represented by SpellItem that have at least one valid Magic Effect. Shouts and Active Effects are unchanged. Other Dynamic Tooltips modules are unchanged.

Validation

• fresh isolated CMake Release configure/build against CommonLibVR-MIT dfb6263ea688a06c9bcf90f36ac46ddeacbf2b1f — passed
• Skyrim SE/AE/VR targets enabled — passed
• git diff --check — passed
• CTest — no tests are defined in this repository
• in-game Magic Menu hover validation — not run