[FRONT COMPONENTS] Declare command menu items in front components (#18047)

## Description

- Adds support for declaring command menu items directly within
`defineFrontComponent` via an optional command config property
- Introduces a new `CommandMenuItemManifest` type in twenty-shared and
wires it through the manifest build pipeline

## Example Of usage

```tsx
import { defineFrontComponent } from "twenty-sdk";

const TestAction = () => {
  return <div>Test Action</div>;
};

export default defineFrontComponent({
  universalIdentifier: "6c289461-0007-4a62-a99f-69e5c11a4ce7",
  name: "test-action",
  description: "Test Action",
  component: TestAction,
  command: {
    universalIdentifier: "c07df864-495f-46f3-9f5b-9d3ce2589e9b",
    label: "Run My Action",
    icon: "IconBolt",
    isPinned: false,
  },
});

```

## Video QA


https://github.com/user-attachments/assets/f910fc6a-44a9-45d1-87c5-f0ce64bb3878

packages/twenty-shared/src/application/frontComponentManifestType.ts

@@ -1,3 +1,19 @@
+import { type SyncableEntityOptions } from '@/application/syncableEntityOptionsType';
+
+export type CommandMenuItemManifest = SyncableEntityOptions & {
+  label: string;
+  icon?: string;
+  isPinned?: boolean;
+  availabilityType?: 'GLOBAL' | 'SINGLE_RECORD' | 'BULK_RECORDS';
+  availabilityObjectUniversalIdentifier?: string;
+  frontComponentUniversalIdentifier: string;
+};
+
+export type FrontComponentCommandManifest = Omit<
+  CommandMenuItemManifest,
+  'frontComponentUniversalIdentifier'
+>;
+
 export type FrontComponentManifest = {
   universalIdentifier: string;
   name?: string;
@@ -6,4 +22,5 @@ export type FrontComponentManifest = {
   builtComponentPath: string;
   builtComponentChecksum: string;
   componentName: string;
+  command?: FrontComponentCommandManifest;
 };

packages/twenty-shared/src/application/index.ts

@@ -25,7 +25,11 @@ export type {
   RelationFieldManifest,
   FieldManifest,
 } from './fieldManifestType';
-export type { FrontComponentManifest } from './frontComponentManifestType';
+export type {
+  CommandMenuItemManifest,
+  FrontComponentCommandManifest,
+  FrontComponentManifest,
+} from './frontComponentManifestType';
 export type {
   LogicFunctionManifest,
   CronTriggerSettings,