Chore/tree shaking

[sdwvit]

• Reorginize code in a way that allows esbuilt to strip off unused stores, when building a specific component.
  E.g. Agenda doesn't care about ContactStore
• Adopt nylas eslint plugin for svelte
• nylas-error was not included in any of the component, since it required implicit import. Fix that by importing it in commons and telling esbuilt to not tree-shake it
• fix typescript warnings here and there

[vercel]

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[wonka-lighthouse]

Device	URL
mobile	http://localhost:8000/components/agenda/src/index.html

Device	URL
mobile	http://localhost:8000/components/composer/src/index.html

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