test(pr): follow the pr changes in the Gitea lifecycle test and polish flag help

The disposable-Gitea lifecycle test expects pr checkout to name the
branch after the head branch and to fetch quietly, and ✓ feedback only
on terminals. The review flags name their file and commit values, and
pr edit gets a short Short with the editable fields in its Long text.

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

internal/app/pull_edit.go

@@ -19,7 +19,8 @@ func (a *application) pullEditCommand() *cobra.Command {
 	var draft, ready, maintainer, useEditor, removeMilestone bool
 	var metadata metadataFlags
 	var reviewers services.ReviewRequestChanges
-	cmd := &cobra.Command{Use: "edit [<number> | <url> | <branch>]", Short: "Edit a pull request: title, body, base, reviewers, labels, assignees, milestone, due date", Annotations: pullArgumentsAnnotation(nil), Args: usageArgs(cobra.MaximumNArgs(1)), RunE: func(cmd *cobra.Command, args []string) (runErr error) {
+	cmd := &cobra.Command{Use: "edit [<number> | <url> | <branch>]", Short: "Edit a pull request", Long: `Edit the title, body, base branch, reviewers, labels, assignees, milestone or due date of a
+pull request, or mark it as a draft or ready for review.`, Annotations: pullArgumentsAnnotation(nil), Args: usageArgs(cobra.MaximumNArgs(1)), RunE: func(cmd *cobra.Command, args []string) (runErr error) {
 		var editorDraft terminal.Draft
 		defer finishDraft(&editorDraft, &runErr)
 		if err := validateBodySources(cmd); err != nil {