feat: hide inactive teamers from list view, overridable in filter

addresses #869dv987y

config/services.yaml

@@ -7,6 +7,8 @@ parameters:
     default_email_from: '%env(APP_DEFAULT_EMAIL_FROM)%'
     default_email_to: '%env(APP_DEFAULT_EMAIL_TO)%'
 
+    teamer_inactive_period: '-2 years'
+
     destinations:
         - Schwendi
         - Waldschlössli
@@ -38,6 +40,7 @@ services:
             $destinations: '%destinations%'
             $xmlExport: '@xml_export.storage'
             $xmlDump: '@xml_dump.storage'
+            $teamerInactivePeriod: '%teamer_inactive_period%'
 
     App\:
         resource: '../src/'