Move view in metadata-modules/ and create atomic folder + module for each view entity (#14990)

# Introduction
Preparing view-filter and view-group introduction in v2 core engine
Moving view from `core-modules` to `metadata-modules`

## What happened

### Created dedicated modules for each view entity:
- ViewFieldModule
- ViewFilterModule
- ViewFilterGroupModule
- ViewGroupModule
- ViewSortModule

### Each module is now completely independent with its own:
- Controller
- Resolver
- Service
- Entity

### Created dedicated abstraction metadata module folder for:
- flat-view-field
- flat-view

### Dependencies 
- Eleminated circular dep on ViewModule to all others ones
- Granular import not importing the whole viewModule anymore everywhere


close https://github.com/twentyhq/core-team-issues/issues/1703

packages/twenty-server/src/engine/metadata-modules/view/dtos/inputs/delete-view.input.ts

@@ -0,0 +1,15 @@
+import { InputType } from '@nestjs/graphql';
+
+import { IDField } from '@ptc-org/nestjs-query-graphql';
+import { IsUUID } from 'class-validator';
+
+import { UUIDScalarType } from 'src/engine/api/graphql/workspace-schema-builder/graphql-types/scalars';
+
+@InputType()
+export class DeleteViewInput {
+  @IDField(() => UUIDScalarType, {
+    description: 'The id of the view to delete.',
+  })
+  @IsUUID()
+  id: string;
+}