[FIX]: [PHOENIX] [BE] Change "Name" to "Title" in "Add Product" Modal

[Olnuel]

Description

The "Add Product" modal currently labels the field for entering the product's name as "Name." This field should be renamed to "Title." Update the backend to reflect the change which includes updating the database schema, and API endpoints to replace references to "Name" with "Title."

Acceptance Criteria

1. The backend should replace all instances of the "Name" field with "Title" in the database schema, and API endpoints.
2. Any API requests that previously used "name" as a field should now use "title."

Endpoint

POST /api/products

Links

| FIGMA LINK
https://www.figma.com/design/VEItfX6St5NSAqqNHImcxD/HNG-Boilerplate-Designs?node-id=2828-1922&t=VEj4y3G0vEn4g18k-4

https://www.loom.com/share/630087ae318d48f989584ed6a6db9f54?sid=33eb36d9-521c-42be-9e3f-242f80b54450

https://www.loom.com/share/653496661eaa42f4a0be547c455c9feb?sid=5e2f9cfd-45ab-41e8-83f0-b519f14d39c1

Images