change some string_view's to string whilst I'm at it

Author: Floyd Huizinga

docs/1-introduction/1-1-getting-started/1-1-1-hello-window.md

@@ -211,15 +211,15 @@ I will show the whole code first, and then explain again what means what.
 ```cpp
 #pragma once
 
-#include <string_view>
+#include <string>
 #include <iostream>
 
 struct GLFWwindow;
 
 class Application
 {
 public:
-    Application(const std::string_view title);
+    Application(const std::string& title);
     virtual ~Application();
     void Run();
 
@@ -244,7 +244,7 @@ private:
 #include "Application.hpp"
 #include <GLFW/glfw3.h>
 
-Application::Application(const std::string_view title)
+Application::Application(const std::string& title)
 {
     _title = title;
 }
@@ -317,7 +317,7 @@ bool Application::Initialize()
 class HelloWindowApplication final : public Application
 {
 public:
-    HelloWindowApplication(const std::string_view title);
+    HelloWindowApplication(const std::string& title);
 
 protected:
     bool Load() override;
@@ -331,7 +331,7 @@ protected:
 ```cpp
 #include "HelloWindowApplication.hpp"
 
-HelloWindowApplication::HelloWindowApplication(const std::string_view title)
+HelloWindowApplication::HelloWindowApplication(const std::string& title)
     : Application(title)
 {
 }

docs/1-introduction/1-1-getting-started/1-1-2-hello-d3d11.md

@@ -82,7 +82,7 @@ And the implementation side
 #pragma comment(lib, "winmm.lib")
 #pragma comment(lib, "dxguid.lib")
 
-HelloD3D11Application::HelloD3D11Application(const std::string_view title)
+HelloD3D11Application::HelloD3D11Application(const std::string& title)
     : Application(title)
 {
 }

docs/1-introduction/1-1-getting-started/1-1-3-hello-triangle.md

@@ -210,16 +210,16 @@ First, we will declare some functions that will help us compile our shaders more
 
 ```cpp
 bool CompileShader(
-    const std::wstring_view fileName,
-    const std::string_view entryPoint,
-    const std::string_view profile,
+    const std::wstring& fileName,
+    const std::string& entryPoint,
+    const std::string& profile,
     ComPtr<ID3DBlob>& shaderBlob) const;
 
 [[nodiscard]] ComPtr<ID3D11VertexShader> CreateVertexShader(
-    const std::wstring_view fileName,
+    const std::wstring& fileName,
     ComPtr<ID3DBlob>& vertexShaderBlob) const;
 
-[[nodiscard]] ComPtr<ID3D11PixelShader> CreatePixelShader(std::wstring_view fileName) const;
+[[nodiscard]] ComPtr<ID3D11PixelShader> CreatePixelShader(std::wstring& fileName) const;
 ```
 
 In order, we have:
@@ -257,9 +257,9 @@ First things first, let's see `CompileShader`:
 
 ```cpp
 bool HelloTriangleApplication::CompileShader(
-    const std::wstring_view fileName,
-    const std::string_view entryPoint,
-    const std::string_view profile,
+    const std::wstring& fileName,
+    const std::string& entryPoint,
+    const std::string& profile,
     ComPtr<ID3DBlob>& shaderBlob) const
 {
     constexpr UINT compileFlags = D3DCOMPILE_ENABLE_STRICTNESS;
@@ -325,7 +325,7 @@ Now let's see `CreateVertexShader` and `CreatePixelShader`:
 
 ```cpp
 HelloTriangleApplication::ComPtr<ID3D11VertexShader> HelloTriangleApplication::CreateVertexShader(
-    const std::wstring_view fileName,
+    const std::wstring& fileName,
     ComPtr<ID3DBlob>& vertexShaderBlob) const
 {
     if (!CompileShader(fileName, "Main", "vs_5_0", vertexShaderBlob))
@@ -364,7 +364,7 @@ And finally
 
 ```cpp
 HelloTriangleApplication::ComPtr<ID3D11PixelShader> 
-HelloTriangleApplication::CreatePixelShader(const std::wstring_view fileName) const
+HelloTriangleApplication::CreatePixelShader(const std::wstring& fileName) const
 {
     ComPtr<ID3DBlob> pixelShaderBlob = nullptr;
     if (!CompileShader(fileName, "Main", "ps_5_0", pixelShaderBlob))