MidnightNameplates 0.11.0.3 - Info Page & Menu Order

MENU RULE
- Info is always the first menu page.
- Profiles is always the last menu page.
- All feature pages remain between them.

NEW INFO PAGE
- Addon name and version/phase.
- Short description.
- Getting Started guidance.
- Where to find major systems.
- /mnp command.
- Independent-development/design note.

TEST
1. /mnp opens.
2. Info is the first sidebar item.
3. Profiles is the last sidebar item.
4. All existing pages remain present.
5. Info page opens cleanly.
6. Profiles page still contains profile management and Import/Export.
7. No Lua errors.
