feat: add session and speaker prefix

supabase/schema.sql

@@ -1,14 +1,18 @@
 create table if not exists public.speakers (
   id uuid not null primary key default uuid_generate_v4(),
-  user_id uuid references auth.users on delete cascade not null,
-  speaker_title varchar(100) not null,
-  speaker_description varchar(100) not null,
-  speaker_comment varchar(100) not null,
-  speaker_doc_title varchar(100) not null,
-  speaker_doc_url varchar(100) not null,
-  speaker_time_from timestamp with time zone default timezone('utc' :: text, now()) not null,
-  speaker_time_duration int(10) not null,
-  speaker_place varchar(100) not null,
+  session_title varchar(100) not null,
+  session_description text not null,
+  session_comment varchar(100) not null,
+  session_place varchar(100) not null,
+  session_time_from timestamp with time zone default timezone('utc' :: text, now()) not null,
+  session_time_duration int(10) not null,
+  session_doc_title varchar(100) not null,
+  session_doc_url varchar(100) not null,
+  speaker_name varchar(100) not null,
+  speaker_caption varchar(100) not null,
+  speaker_description text not null,
+  speaker_github_url varchar(100) not null,
+  speaker_x_url varchar(100) not null,
   created_at timestamp with time zone default timezone('utc' :: text, now()) not null,
   updated_at timestamp with time zone default timezone('utc' :: text, now()) not null
 );