fix: optimization: PVS-Studio warning V832

It's better to use '= default;' syntax instead of empty constructor and destructor body.
Using '= default;' can help the compiler generate more optimal code.

Reported by: PVS-Studio

Signed-off-by: Vyacheslav Ivanov <islavaivanov76@gmail.com>

src/graphics/core/Shader.cpp

@@ -32,7 +32,7 @@ uint Shader::getUniformLocation(const std::string& name) {
     auto found = uniformLocations.find(name);
     if (found == uniformLocations.end()) {
         uint location = glGetUniformLocation(id, name.c_str());
-        uniformLocations.emplace(name, location);
+        uniformLocations.try_emplace(name, location);
         return location;
     }
     return found->second;