Introduce group posts

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

lib/web/upload/upload.ex

@@ -64,7 +64,7 @@ defmodule Mobilizon.Web.Upload do
         }
   defstruct [:id, :name, :tempfile, :content_type, :path, :size]
 
-  @spec store(source, options :: [option()]) :: {:ok, Map.t()} | {:error, any()}
+  @spec store(source, options :: [option()]) :: {:ok, map()} | {:error, any()}
   def store(upload, opts \\ []) do
     opts = get_opts(opts)
 

lib/web/upload/uploader/uploader.ex

@@ -37,7 +37,7 @@ defmodule Mobilizon.Web.Upload.Uploader do
 
   @callback remove_file(file_spec()) :: :ok | {:ok, file_spec()} | {:error, String.t()}
 
-  @callback http_callback(Plug.Conn.t(), Map.t()) ::
+  @callback http_callback(Plug.Conn.t(), map()) ::
               {:ok, Plug.Conn.t()}
               | {:ok, Plug.Conn.t(), file_spec()}
               | {:error, Plug.Conn.t(), String.t()}