Mautic v5 Update - Always clear cache in Service Update Override (#1136)

* Update Mautic to 5.1.0, add script to simply enable HTTPS inside mautic as it's very fussy and cuases many people problems in the docker install version.

* Always clear the cache folder on startup - many many problems people have with this, for the sake of a simple command and slower init, it always works when you do this.

* Always clear the cache folder on startup - many many problems people have with this, for the sake of a simple command and slower init, it always works when you do this.

---------

Co-authored-by: Adam Dudley <[email protected]>

public/v4/apps/mautic.yml

@@ -86,7 +86,7 @@ caproverOneClickApp:
             b. In "Environmental Variables", ensure these variables are set correctly:
                 - APACHE_SERVER_NAME = $$cap_appname.$$cap_root_domain
             c. Find the "Service Update Override" section.
-            d. Copy and paste this script:
+            d. Copy and paste this script (which sets apache server name, turns on https, and clears mautic cache every startup for smoother running):
                 ```
                 TaskTemplate:
                     ContainerSpec:
@@ -96,6 +96,7 @@ caproverOneClickApp:
                         - |
                             echo "ServerName ${APACHE_SERVER_NAME}" >> /etc/apache2/apache2.conf
                             echo "SetEnvIf X-Forwarded-Proto https HTTPS=on" >> /etc/apache2/apache2.conf
+                            rm -rf /var/www/html/var/cache/*
                             apache2-foreground
                 ```
             e. Click "Save & Update" at the bottom of the page.