fix: add pass remove flag & show name is optional

cli/app/secret.go

@@ -157,18 +157,18 @@ var appSecretRmCommand = cli.Command{
 	Flags: []cli.Flag{
 		internal.DebugFlag,
 		internal.NoInputFlag,
-		allSecretsFlag, internal.PassFlag,
+		allSecretsFlag,
+		internal.PassRemoveFlag,
 	},
 	Before:       internal.SubCommandBefore,
-	ArgsUsage:    "<domain> <secret-name>",
+	ArgsUsage:    "<domain> [<secret-name>]",
 	BashComplete: autocomplete.AppNameComplete,
 	Description: `
-This command removes a secret from an app environment.
+This command removes app secrets.
 
 Example:
 
     abra app secret remove myapp db_pass
-
 `,
 	Action: func(c *cli.Context) error {
 		app := internal.ValidateApp(c)