Migrate built-in extensions to use manifest-based activate hooks (#5435)
* Convert jQuery/IIFE wrappers to exported init() functions and register activate hooks in 8 extension manifests
* Convert remaining extensions to exported init() with activate hooks and await initExtensions()
- Convert jQuery/IIFE wrappers to exported init() functions in expressions, memory, quick-reply, regex, stable-diffusion, translate, tts, and vectors extensions
- Register init functions as activate hooks in extension manifests
- Properly await async initExtensions() in firstLoadInit()
* Fix eslint
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Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>
Wolfsblvt
f3521e7007