refactor(issue): share the prompt policy check of issue forms

issue create, issue edit and comment prompts ask canPrompt, like the
milestone and label forms, instead of loading the settings themselves.

Signed-off-by: bircni <bircni@icloud.com>

internal/app/issue_edit.go

@@ -32,12 +32,12 @@ $ tea issue edit 12 --body-file notes.md`, Annotations: map[string]string{"tea.a
 		if err := validateBodySources(cmd); err != nil {
 			return err
 		}
-		snapshot, err := a.deps.Settings.Load()
+		prompt, err := a.canPrompt()
 		if err != nil {
 			return err
 		}
 		if !localFlagsChanged(cmd) {
-			if !a.policy(snapshot).CanPrompt(a.deps.Streams) || a.deps.IssueEditForm == nil {
+			if !prompt || a.deps.IssueEditForm == nil {
 				return errNothingToEdit
 			}
 			target, numbers, err := a.resolveRefs(cmd, args, issueRef)