Migration and some boilerplate stuff

priv/repo/migrations/20190205114625_create_thread_mutes.exs

@@ -0,0 +1,12 @@
+defmodule Pleroma.Repo.Migrations.CreateThreadMutes do
+  use Ecto.Migration
+
+  def change do
+    create table(:thread_mutes) do
+      add :user_id, references(:users, type: :uuid, on_delete: :delete_all)
+      add :context, :string
+    end
+    
+    create index(:thread_mutes, [:user_id])
+  end
+end