Jordan/simpler code splitting and lazy loading

[jbibla]

Closes #ISSUE

Description:

Thank you! 🚀

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For contributor:

• Added changes entries. Run yarn changelog for a guided process.
• Reviewed Files changed in the github PR explorer
• Attach screenshots of the UI components on the PR description (if applicable)
• Scope of work approved for big PRs

For reviewer:

• Manually tested the changes on the UI

[jbibla]

with these changes:

app.lunie.io:

[faboweb]

This is now missing the lazy loading of the modals. But that's more complex I see. I will create a follow up issue.