Fix ex_docs warnings

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/graphql/api/search.ex

@@ -19,7 +19,7 @@ defmodule Mobilizon.GraphQL.API.Search do
   Searches actors.
   """
   @spec search_actors(map(), integer | nil, integer | nil, ActorType.t()) ::
-          {:ok, Page.t()} | {:error, String.t()}
+          {:ok, Page.t(Actor.t())} | {:error, String.t()}
   def search_actors(%{term: term} = args, page \\ 1, limit \\ 10, result_type) do
     term = String.trim(term)
 
@@ -64,7 +64,7 @@ defmodule Mobilizon.GraphQL.API.Search do
   Search events
   """
   @spec search_events(map(), integer | nil, integer | nil) ::
-          {:ok, Page.t()}
+          {:ok, Page.t(Event.t())}
   def search_events(%{term: term} = args, page \\ 1, limit \\ 10) do
     term = String.trim(term)
 
@@ -100,7 +100,7 @@ defmodule Mobilizon.GraphQL.API.Search do
   end
 
   # If the search string is an username
-  @spec process_from_username(String.t()) :: Page.t()
+  @spec process_from_username(String.t()) :: Page.t(Actor.t())
   defp process_from_username(search) do
     case ActivityPubActor.find_or_make_actor_from_nickname(search) do
       {:ok, %Actor{type: :Group} = actor} ->
@@ -118,7 +118,7 @@ defmodule Mobilizon.GraphQL.API.Search do
   end
 
   # If the search string is an URL
-  @spec process_from_url(String.t()) :: Page.t()
+  @spec process_from_url(String.t()) :: Page.t(struct())
   defp process_from_url(search) do
     case ActivityPub.fetch_object_from_url(search) do
       {:ok, object} ->

lib/graphql/resolvers/followers.ex

@@ -10,7 +10,7 @@ defmodule Mobilizon.GraphQL.Resolvers.Followers do
   alias Mobilizon.Storage.Page
   alias Mobilizon.Users.User
 
-  @spec find_followers_for_group(Actor.t(), map(), map()) :: {:ok, Page.t()}
+  @spec find_followers_for_group(Actor.t(), map(), map()) :: {:ok, Page.t(Follower.t())}
   def find_followers_for_group(
         %Actor{id: group_id} = group,
         args,

lib/graphql/resolvers/person.ex

@@ -357,7 +357,8 @@ defmodule Mobilizon.GraphQL.Resolvers.Person do
   @doc """
   Returns this person's group memberships
   """
-  @spec person_memberships(Actor.t(), map(), map()) :: {:ok, Page.t()} | {:error, String.t()}
+  @spec person_memberships(Actor.t(), map(), map()) ::
+          {:ok, Page.t(Member.t())} | {:error, String.t()}
   def person_memberships(%Actor{id: actor_id} = person, args, %{
         context: %{current_user: %User{} = user}
       }) do
@@ -399,7 +400,8 @@ defmodule Mobilizon.GraphQL.Resolvers.Person do
   @doc """
   Returns this person's group follows
   """
-  @spec person_follows(Actor.t(), map(), map()) :: {:ok, Page.t()} | {:error, String.t()}
+  @spec person_follows(Actor.t(), map(), map()) ::
+          {:ok, Page.t(Follower.t())} | {:error, String.t()}
   def person_follows(%Actor{} = person, %{group: group}, %{
         context: %{current_user: %User{} = user}
       }) do