[HACKTOBERFEST] Fix apply Filters button on Courses page

[rajeev-sr]

When trying to filter courses on the Courses page, the filters (e.g., department, difficulty, minimum rating) do not update the displayed results. Clicking on the Apply Filters button does not trigger any change in the course list.

Steps to Reproduce:

1.Go to the /courses page.

2.Select one or more filters (e.g., department = MA, difficulty = Beginner, min rating = 4).

3.Click on Apply Filters.

--Expected Behavior:
The course list should update and display only the courses that match the applied filters.

--Actual Behavior:
The course list remains unchanged. No filtering is applied after clicking Apply Filters.

[agr-yash]

Hello @rajeev-sr ,
This is to request you for the following values of the same:
NEXT_PUBLIC_SUPABASE_URL=
NEXT_PUBLIC_SUPABASE_ANON_KEY=
NEXT_PUBLIC_SITE_SALT=
SUPABASE_SERVICE_ROLE_KEY=

Since, I want to contribute for the same, unable to test properly without data.

[rajeev-sr]

@agr-yash

1. NEXT_PUBLIC_SUPABASE_URLThis is the API URL of your Supabase project.
   You can find it in the Supabase Dashboard → Project Settings → API → Project URL.

2. NEXT_PUBLIC_SUPABASE_ANON_KEY
   This is the public anon key (safe to expose on frontend).
   Found in Supabase Dashboard → Project Settings → API → Project API Keys → anon public.

3. SUPABASE_SERVICE_ROLE_KEY
   This is the service_role key ( never expose on frontend).
   Found in Supabase Dashboard → Project Settings → API → Project API Keys → service_role.
   This is used for server-side tasks like inserting secure data, row-level policies, etc.

4. NEXT_PUBLIC_SITE_SALT
   This one is not provided by Supabase.
   It’s usually a random string (for hashing, encryption, or unique IDs).

• run on bash
  ''' openssl rand -base64 32 '''

You can generate it yourself.