[Refactor] Migrate misplaced features/users/data/ files to correct domain folders

[evanautianle]

User story:

As a developer working on this codebase,
I want data-fetching files to live under their correct domain folder,
So that the features strucutre is consistent and new contributors can find files easily.

Acceptance Criteria (AC):

• getEvents.ts moved to src/features/event/data/getEvents.ts
• getFaqs.ts moved to src/features/faqs/data/getFAQs.ts
• getICGroupPhoto.ts moved to src/features/about/data/getICGroupPhoto.ts
• getLandingPageImage.ts moved to src/features/landing/data/getLandingPageImage.ts
• All import paths referencing the moved files are updated
• passes with no errors

Definition of done:

• AC met
• PR reviewed
• merged to main/feature branch