Remove unnecessary type arguments

I'm getting warnings in my editor about these, probably because of an updated
gopls again.

pkg/gui/controllers/sub_commits_controller.go

@@ -20,7 +20,7 @@ func NewSubCommitsController(
 ) *SubCommitsController {
 	return &SubCommitsController{
 		baseController: baseController{},
-		ListControllerTrait: NewListControllerTrait[*models.Commit](
+		ListControllerTrait: NewListControllerTrait(
 			c,
 			c.Contexts().SubCommits,
 			c.Contexts().SubCommits.GetSelected,