Pleroma.Web.MastodonAPI.SearchController: fix dialyzer errors

Add a separate Pagination.paginate_list/2 function instead of overloading paginate/4 and complicating its matching and @spec

lib/pleroma/pagination.ex

@@ -61,15 +61,16 @@ defmodule Pleroma.Pagination do
     |> Repo.all()
   end
 
-  @spec paginate(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()]
-  def paginate(query, options, method \\ :keyset, table_binding \\ nil)
-
-  def paginate(list, options, _method, _table_binding) when is_list(list) do
+  @spec paginate_list(list(), keyword()) :: list()
+  def paginate_list(list, options) do
     offset = options[:offset] || 0
     limit = options[:limit] || 0
     Enum.slice(list, offset, limit)
   end
 
+  @spec paginate(Ecto.Query.t(), map(), type(), atom() | nil) :: [Ecto.Schema.t()]
+  def paginate(query, options, method \\ :keyset, table_binding \\ nil)
+
   def paginate(query, options, :keyset, table_binding) do
     query
     |> restrict(:min_id, options, table_binding)

lib/pleroma/web/mastodon_api/controllers/search_controller.ex

@@ -156,7 +156,7 @@ defmodule Pleroma.Web.MastodonAPI.SearchController do
         tags
       end
 
-    Pleroma.Pagination.paginate(tags, options)
+    Pleroma.Pagination.paginate_list(tags, options)
   end
 
   defp add_joined_tag(tags) do