Fix potentially wrong help text in commit message panel

It said "Press tab to toggle focus", which is wrong for people who remapped
their togglePanel key binding to something else. Print the actual key binding
instead.

pkg/gui/views.go

@@ -3,7 +3,9 @@ package gui
 import (
 	"github.com/jesseduffield/generics/slices"
 	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
 	"github.com/jesseduffield/lazygit/pkg/theme"
+	"github.com/jesseduffield/lazygit/pkg/utils"
 )
 
 type viewNameMapping struct {
@@ -159,7 +161,10 @@ func (gui *Gui) createAllViews() error {
 
 	gui.Views.CommitDescription.Visible = false
 	gui.Views.CommitDescription.Title = gui.c.Tr.CommitDescriptionTitle
-	gui.Views.CommitDescription.Subtitle = gui.Tr.CommitDescriptionSubTitle
+	gui.Views.CommitDescription.Subtitle = utils.ResolvePlaceholderString(gui.Tr.CommitDescriptionSubTitle,
+		map[string]string{
+			"togglePanelKeyBinding": keybindings.Label(gui.UserConfig.Keybinding.Universal.TogglePanel),
+		})
 	gui.Views.CommitDescription.FgColor = theme.GocuiDefaultTextColor
 	gui.Views.CommitDescription.Editable = true
 	gui.Views.CommitDescription.Editor = gocui.EditorFunc(gui.commitDescriptionEditor)

pkg/i18n/english.go

@@ -886,7 +886,7 @@ func EnglishTranslationSet() TranslationSet {
 		RebaseOptionsTitle:                  "Rebase options",
 		CommitMessageTitle:                  "Commit summary",
 		CommitDescriptionTitle:              "Commit description",
-		CommitDescriptionSubTitle:           "Press tab to toggle focus",
+		CommitDescriptionSubTitle:           "Press {{.togglePanelKeyBinding}} to toggle focus",
 		LocalBranchesTitle:                  "Local branches",
 		SearchTitle:                         "Search",
 		TagsTitle:                           "Tags",