refactor: move app listing back to common

Without this, we'd need to duplicate some logic or make it more complex via a plugin trigger.

plugins/cron/functions.go

@@ -11,7 +11,6 @@ import (
 	"text/template"
 
 	appjson "github.com/dokku/dokku/plugins/app-json"
-	apps "github.com/dokku/dokku/plugins/apps"
 	"github.com/dokku/dokku/plugins/common"
 
 	cronparser "github.com/robfig/cron/v3"
@@ -100,7 +99,7 @@ func deleteCrontab() error {
 }
 
 func writeCronEntries() error {
-	apps, _ := apps.DokkuApps()
+	apps, _ := common.DokkuApps()
 	commands := []templateCommand{}
 	for _, appName := range apps {
 		scheduler := common.GetAppScheduler(appName)

plugins/cron/subcommands.go

@@ -3,7 +3,6 @@ package cron
 import (
 	"fmt"
 
-	"github.com/dokku/dokku/plugins/apps"
 	"github.com/dokku/dokku/plugins/common"
 	"github.com/ryanuber/columnize"
 )
@@ -32,7 +31,7 @@ func CommandList(appName string) error {
 // CommandReport displays a cron report for one or more apps
 func CommandReport(appName string, format string, infoFlag string) error {
 	if len(appName) == 0 {
-		apps, err := apps.DokkuApps()
+		apps, err := common.DokkuApps()
 		if err != nil {
 			return err
 		}