# Introduction
Avoid having multiple `isDefined` definition across our pacakges
Also avoid importing `isDefined` from `twenty-ui` which exposes a huge
barrel for a such little util function
## In a nutshell
Removed own `isDefined.ts` definition from `twenty-ui` `twenty-front`
and `twenty-server` to move it to `twenty-shared`.
Updated imports for each packages, and added explicit dependencies to
`twenty-shared` if not already in place
Related PR https://github.com/twentyhq/twenty/pull/9941
Fixes: #8487#5027
1. Summary
The purpose of these changes is to elevate the dev/user experience when
the initial config load call fails for whatever reason by displaying a
fallback component.
2. Solution
I ended up making more changes than I initially planned. I had to update
the order of the contexts a bit because `GenericErrorFallback` is
dependent on `AppThemeProvider` for styling and `AppThemeProvider` is
dependent on `ObjectMetadataItemsProvider` for
[`useObjectMetadataItem`](ae2f193d68/packages/twenty-front/src/modules/object-metadata/hooks/useObjectMetadataItem.ts (L22))
hook (`AppThemeProvider` -> `useColorScheme` -> `useUpdateOneRecord` ->
`useObjectMetadataItem`). I had to create a wrapper component for
`AppThemeProvider` and stylize it in a way that it looks responsive on
both mobile and desktop devices. Finally, I had to introduce the
`isErrored` flag to differentiate the loading and error states.
There are some improvements we can make later -
- Display a loading state for the initial config load
- Implement a refetch logic for the initial config loading failure
3. Recording
https://github.com/user-attachments/assets/c2f43573-8006-4118-8e18-8576099d78fdhttps://github.com/user-attachments/assets/9c5853d3-539b-4880-aa38-c416c3e13594
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Co-authored-by: Félix Malfait <felix@twenty.com>
