Make a choice of the encoder in the form

Made a choice of the encoder by categories: video, audio and photo.

internal/gui/window/main.go

@@ -3,7 +3,6 @@ package window
 import (
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/dialog"
-	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/application"
 	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/application/convertor"
 	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/internal/utils"
 )
@@ -22,13 +21,13 @@ type mainWindow struct {
 	fyneWindow         fyne.Window
 	layout             LayoutContract
 	itemsToConvert     convertor.ItemsToConvertContract
-	progressBarService application.ProgressBarContract
+	progressBarService convertor.ProgressBarContract
 	queueLayout        QueueLayoutContract
 }
 
 func NewMainWindow(
 	fyneWindow fyne.Window,
-	progressBarService application.ProgressBarContract,
+	progressBarService convertor.ProgressBarContract,
 	itemsToConvert convertor.ItemsToConvertContract,
 	queueLayout QueueLayoutContract,
 ) WindowContract {