use device browser instead of webview

main.go

@@ -15,10 +15,11 @@ import (
 	"github.com/kirsle/configdir"
 	"github.com/mattn/go-mastodon"
 	"github.com/k3a/html2text"
-	webview "github.com/webview/webview_go"
+	/*webview "github.com/webview/webview_go"*/
 
 	"encoding/json"
 	"path/filepath"
+	"net/url"
 	_ "net/http"
 
 	"context"
@@ -169,17 +170,27 @@ func ProfileLaunch() {
 					app, err := mastodon.RegisterApp(context.Background(), AppConfig)
 					if err != nil {
 						dialog.ShowError(err, AddProfileWindow)
+						return
 					}
 
 					fmt.Println("App successfully created:\n", app)
 					// Step two: the user now needs to log in
 
+					/*
 					Webview := webview.New(false)
 					defer Webview.Destroy()
 					Webview.SetTitle("Authenticate - copy the authorisation code when logged in.")
 					Webview.SetSize(480, 320, webview.HintNone)
 					Webview.Navigate(app.AuthURI)
 					Webview.Run()
+					*/
+					u, err := url.Parse(app.AuthURI)
+					if err != nil {
+						dialog.ShowError(err, AddProfileWindow)
+						return
+					}
+
+					App.OpenURL(u)
 
 					AddProfileWindow.Resize(fyne.NewSize(500, 500))