Merge #2171

2171: fixed plugin path r=mergify[bot] a=ghostwheel42

## What type of PR?

bug-fix

## What does this PR do?

use correct plugin path to verify plugin list

### Related issue(s)

closes: #2168

## Prerequisites
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.

- [ ] In case of feature or enhancement: documentation updated accordingly
- [ ] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.


Co-authored-by: Alexander Graf <ghostwheel42@users.noreply.github.com>

webmails/roundcube/start.py

@@ -51,7 +51,7 @@ context['SECRET_KEY'] = hmac.new(bytearray(secret_key, 'utf-8'), bytearray('ROUN
 
 # roundcube plugins
 # (using "dict" because it is ordered and "set" is not)
-plugins = dict((p, None) for p in env.get("ROUNDCUBE_PLUGINS", "").replace(" ", "").split(",") if p and os.path.isdir(os.path.join("/var/www/plugins", p)))
+plugins = dict((p, None) for p in env.get("ROUNDCUBE_PLUGINS", "").replace(" ", "").split(",") if p and os.path.isdir(os.path.join("/var/www/html/plugins", p)))
 if plugins:
     plugins["mailu"] = None
 else: