Refactor spreadsheet import (#11250)

Mostly renaming objects to avoid conflicts (it was painful because names
were too generic so you could cmd+replace easily)

Also refactoring `useBuildAvailableFieldsForImport`

packages/twenty-ui/src/input/index.ts

@@ -27,3 +27,4 @@ export * from './components/Radio';
 export * from './components/RadioGroup';
 export * from './components/Toggle';
 export * from './types/ColorScheme';
+export * from './types/SelectOption';