Fix macOS compile errors

Author: Ravbug

source/create_dialog_derived.cpp

@@ -84,7 +84,7 @@ void CreateProjectDialogD::OnCreate(wxCommandEvent& event){
 
 		//create the command string
 		#if defined __APPLE__
-			string command = "\"" + executablePath + "\" -createproject \"" + projPath + dirsep + projName + "\" -cloneFromTemplate \"" + executableTemplatesPath + templatePrefix + "." + templateName + "\"";
+			string command = "\"" + executablePath.string() + "\" -createproject \"" + (filesystem::path(projPath) / projName).string() + "\" -cloneFromTemplate \"" + executableTemplatesPath.string() + templatePrefix + "." + templateName + "\"";
 		#elif defined _WIN32
 			auto fullProj = std::filesystem::path("\"") / projPath / projName / "\"";
 			auto fullTemplate = std::filesystem::path("\"") / executableTemplatesPath / (templatePrefix + "." + templateName + "\"");

source/globals.h

@@ -25,18 +25,18 @@ struct editor{
 #if defined __APPLE__
 	#include <pwd.h>
 	//the location to store application data
-	static const std::string datapath = getpwuid(getuid())->pw_dir + std::string("/Library/Application Support/UnityHubNative");
+	static const std::filesystem::path datapath = std::filesystem::path(getpwuid(getuid())->pw_dir) / "Library/Application Support/UnityHubNative";
 	static const char dirsep = '/';
 
-    static const std::string cachedir = getpwuid(getuid())->pw_dir + std::string("/Library/Caches/com.ravbug.UnityHubNative/");
+    static const std::filesystem::path cachedir = std::filesystem::path(getpwuid(getuid())->pw_dir) / "/Library/Caches/com.ravbug.UnityHubNative/";
 	static const std::string installerExt = "dmg";
 
 	//where to find various Unity things on macOS
-	static const std::string executable = "Unity.app/Contents/MacOS/Unity";
-    static const std::vector<std::string> defaultInstall = {"/Applications/Unity/Hub/Editor","/Applications/Unity/"};
+	static const std::filesystem::path executable = "Unity.app/Contents/MacOS/Unity";
+    static const std::vector<std::filesystem::path> defaultInstall = {"/Applications/Unity/Hub/Editor","/Applications/Unity/"};
 	//TODO: make this a preference?
-	static const std::string hubDefault = "/Applications/Unity Hub.app";
-	static const std::string templatesDir = "Unity.app/Contents/Resources/PackageManager/ProjectTemplates/";
+	static const std::filesystem::path hubDefault = "/Applications/Unity Hub.app";
+	static const std::filesystem::path templatesDir = "Unity.app/Contents/Resources/PackageManager/ProjectTemplates/";
 
 	//for stream redirecting to dev/null
 	static const std::string null_device = ">/dev/null 2>&1";