implement pre-launch ui for configuring iso directory (#301)

UI will automatically open on boot and will not launch the game if there is no valid iso path specified in the config. Can optionally be disabled on future game launches.

src/dusk/imgui/ImGuiConsole.cpp

@@ -14,6 +14,7 @@
 #include "JSystem/JUtility/JUTGamePad.h"
 #include "SDL3/SDL_mouse.h"
 #include "dusk/config.hpp"
+#include "dusk/main.h"
 #include "dusk/settings.h"
 #include "dusk/audio/DuskAudioSystem.h"
 #include "dusk/dusk.h"
@@ -35,6 +36,21 @@ namespace dusk {
         ImGui::TextUnformatted(text.data(), text.data() + text.size());
     }
 
+    void ImGuiTextCenter(std::string_view text) {
+        ImGui::NewLine();
+        float fontSize = ImGui::CalcTextSize(text.data(), text.data() + text.size()).x;
+        ImGui::SameLine(ImGui::GetWindowSize().x / 2 - fontSize + fontSize / 2);
+        ImGuiStringViewText(text);
+    }
+
+    bool ImGuiButtonCenter(std::string_view text) {
+        ImGui::NewLine();
+        float fontSize = ImGui::CalcTextSize(text.data(), text.data() + text.size()).x;
+        fontSize += ImGui::GetStyle().FramePadding.x;
+        ImGui::SameLine(ImGui::GetWindowSize().x / 2 - fontSize + fontSize / 2);
+        return ImGui::Button(text.data());
+    }
+
     std::string BytesToString(size_t bytes) {
         constexpr std::array suffixes{ "B"sv, "KB"sv, "MB"sv, "GB"sv, "TB"sv, "PB"sv, "EB"sv };
         uint32_t s = 0;
@@ -221,7 +237,10 @@ namespace dusk {
             ImGuiMenuGame::ToggleFullscreen();
         }
 
-        if (CheckMenuViewToggle(ImGuiKey_F1, m_isHidden)) {
+        if (!dusk::IsGameLaunched) {
+            m_preLaunchWindow.draw();
+        }
+        else if (CheckMenuViewToggle(ImGuiKey_F1, m_isHidden)) {
             ShowToasts();
             ImGui::GetIO().ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange;
             SDL_HideCursor();