Remove boost::noncopyable use & boost::random dependency (#4776)

The use has been removed from the following files:
* Atomic.hpp
* SignalVector.hpp
* Benchmark.hpp
* IvrApi
* LoggingChannel.hpp
* Singleton.hpp
* Image.hpp
* PrecompiledHeader.hpp
* Message.hpp
* MessageElement.hpp
* MessageLayout.hpp
* MessageLayoutElement.hpp
* Fonts.hpp (just include)

src/common/Singleton.hpp

@@ -1,17 +1,22 @@
 #pragma once
 
-#include <boost/noncopyable.hpp>
-
 namespace chatterino {
 
 class Settings;
 class Paths;
 
-class Singleton : boost::noncopyable
+class Singleton
 {
 public:
+    Singleton() = default;
     virtual ~Singleton() = default;
 
+    Singleton(const Singleton &) = delete;
+    Singleton &operator=(const Singleton &) = delete;
+
+    Singleton(Singleton &&) = delete;
+    Singleton &operator=(Singleton &&) = delete;
+
     virtual void initialize(Settings &settings, Paths &paths)
     {
         (void)(settings);