feat: add support for emacs keybindings

Author: Ryooooooga

pkg/gui/editors.go

@@ -38,10 +38,16 @@ func (gui *Gui) handleEditorKeypress(textArea *gocui.TextArea, key gocui.Key, ch
 		textArea.ToggleOverwrite()
 	case key == gocui.KeyCtrlU:
 		textArea.DeleteToStartOfLine()
+	case key == gocui.KeyCtrlK:
+		textArea.DeleteToEndOfLine()
 	case key == gocui.KeyCtrlA || key == gocui.KeyHome:
 		textArea.GoToStartOfLine()
 	case key == gocui.KeyCtrlE || key == gocui.KeyEnd:
 		textArea.GoToEndOfLine()
+	case key == gocui.KeyCtrlW:
+		textArea.BackSpaceWord()
+	case key == gocui.KeyCtrlY:
+		textArea.Yank()
 
 		// TODO: see if we need all three of these conditions: maybe the final one is sufficient
 	case ch != 0 && mod == 0 && unicode.IsPrint(ch):