[REFACTOR] twenty-shared multi barrel and CJS/ESM build with preconstruct (#11083)

# Introduction

In this PR we've migrated `twenty-shared` from a `vite` app
[libary-mode](https://vite.dev/guide/build#library-mode) to a
[preconstruct](https://preconstruct.tools/) "atomic" application ( in
the future would like to introduce preconstruct to handle of all our
atomic dependencies such as `twenty-emails` `twenty-ui` etc it will be
integrated at the monorepo's root directly, would be to invasive in the
first, starting incremental via `twenty-shared`)

For more information regarding the motivations please refer to nor:
- https://github.com/twentyhq/core-team-issues/issues/587
-
https://github.com/twentyhq/core-team-issues/issues/281#issuecomment-2630949682

close https://github.com/twentyhq/core-team-issues/issues/589
close https://github.com/twentyhq/core-team-issues/issues/590

## How to test
In order to ease the review this PR will ship all the codegen at the
very end, the actual meaning full diff is `+2,411 −114`
In order to migrate existing dependent packages to `twenty-shared` multi
barrel new arch you need to run in local:
```sh
yarn tsx packages/twenty-shared/scripts/migrateFromSingleToMultiBarrelImport.ts && \
npx nx run-many -t lint --fix -p twenty-front twenty-ui twenty-server twenty-emails twenty-shared twenty-zapier
```
Note that `migrateFromSingleToMultiBarrelImport` is idempotent, it's atm
included in the PR but should not be merged. ( such as codegen will be
added before merging this script will be removed )

## Misc
- related opened issue preconstruct
https://github.com/preconstruct/preconstruct/issues/617

## Closed related PR
- https://github.com/twentyhq/twenty/pull/11028
- https://github.com/twentyhq/twenty/pull/10993
- https://github.com/twentyhq/twenty/pull/10960

## Upcoming enhancement: ( in others dedicated PRs )
- 1/ refactor generate barrel to export atomic module instead of `*`
- 2/ generate barrel own package with several files and tests
- 3/ Migration twenty-ui the same way
- 4/ Use `preconstruct` at monorepo global level

## Conclusion
As always any suggestions are welcomed !

packages/twenty-shared/project.json

@@ -3,13 +3,45 @@
   "$schema": "../../node_modules/nx/schemas/project-schema.json",
   "sourceRoot": "packages/twenty-shared/src",
   "projectType": "library",
-  "tags": ["scope:shared"],
+  "tags": [
+    "scope:shared"
+  ],
   "targets": {
     "build": {
-      "dependsOn": ["^build"],
-      "outputs": ["{options.outputPath}"],
+      "dependsOn": [
+        "generateBarrels",
+        "^build"
+      ],
+      "outputs": [
+        "{projectRoot}/dist",
+        "{projectRoot}/constants/package.json",
+        "{projectRoot}/constants/dist",
+        "{projectRoot}/testing/package.json",
+        "{projectRoot}/testing/dist",
+        "{projectRoot}/translations/package.json",
+        "{projectRoot}/translations/dist",
+        "{projectRoot}/types/package.json",
+        "{projectRoot}/types/dist",
+        "{projectRoot}/utils/package.json",
+        "{projectRoot}/utils/dist",
+        "{projectRoot}/workspace/package.json",
+        "{projectRoot}/workspace/dist"
+      ]
+    },
+    "generateBarrels": {
+      "executor": "nx:run-commands",
+      "cache": true,
+      "inputs": [
+        "production",
+        "{projectRoot}/scripts/generateBarrels.ts"
+      ],
+      "outputs": [
+        "{projectRoot}/src/index.ts",
+        "{projectRoot}/src/*/index.ts",
+        "{projectRoot}/package.json"
+      ],
       "options": {
-        "outputPath": "{projectRoot}/dist"
+        "command": "tsx {projectRoot}/scripts/generateBarrels.ts"
       }
     },
     "typecheck": {},