Fix build failure on Ubuntu 20.04

- include/notifications/sound.h: Add SoundBuilder class
- src/snap.cpp: Add m_sound_builder variable
- src/main.cpp: Fix uin -> ain typo
- CMakeLists.txt: Add uuid dependency

1 files changed, 1 insertions, 0 deletions

diff --git a/src/snap.cpp b/src/snap.cpp
index 00c4743..0ef6a94 100644
--- a/src/snap.cpp
+++ b/src/snap.cpp
@@ -300,6 +300,7 @@ private:
     }
 
     const std::shared_ptr<ayatana::indicator::notifications::Engine> m_engine;
+    const std::shared_ptr<ayatana::indicator::notifications::SoundBuilder> m_sound_builder;
     const std::shared_ptr<const Settings> m_settings;
     std::set<int> m_notifications;
     GCancellable * m_cancellable {nullptr};