API: GET List of All Categories

• Method: GET
• Endpoint: /api/projects/categories

{
    "categories": [
        {
            "arrayOfProjectIds": [
                "ddsadsa4t36534543",
                "ddsadsa4t36534543"
            ],
            "_id": "5acebe8094f48ee7749b5cd5",
            "categoryName": "productivity"
        },
        {
            "arrayOfProjectIds": [
                "ddsadsa4t36534543",
                "ddsadsa4t36534543"
            ],
            "_id": "5acebe8094f48ee7749b5cd5",
            "categoryName": "weather"
        }
    ],
    "message": "Successfully retrieved categories"
}