Add imprint logo to emails

- Remove big space under 'Hello XXX' line.

backend/src/emails/templates/greatingFormularImprint.pug

@@ -4,6 +4,10 @@ p(style='margin-top: 24px;')
   = t('emails.general.yourGradidoTeam')
 p(style='margin-top: 24px;')= '—————'
 p(style='margin-top: 24px;')
+  if t('general.imprintImageURL').length > 0
+    div(style='position: relative; left: -22px;')
+      img(src=t('general.imprintImageURL'), width='200', alt=t('general.imprintImageAlt'))
+    br
   each line in t('general.imprint').split(/\n/)
     = line
     br

backend/src/emails/templates/hello.pug

@@ -1 +1 @@
-p(style='margin-bottom: 24px;')= t('emails.general.helloName', { firstName, lastName })
+p= t('emails.general.helloName', { firstName, lastName })

backend/src/locales/de.json

@@ -57,6 +57,8 @@
   },
   "general": {
     "decimalSeparator": ",",
-    "imprint": "Gradido-Akademie\nInstitut für Wirtschaftsbionik\nPfarrweg 2\n74653 Künzelsau\nDeutschland"
+    "imprint": "Gradido-Akademie\nInstitut für Wirtschaftsbionik\nPfarrweg 2\n74653 Künzelsau\nDeutschland",
+    "imprintImageAlt": "Gradido-Akademie Logo",
+    "imprintImageURL": "https://gdd.gradido.net/img/brand/green.png"
   }
 }

backend/src/locales/en.json

@@ -57,6 +57,8 @@
   },
   "general": {
     "decimalSeparator": ".",
-    "imprint": "Gradido-Akademie\nInstitut für Wirtschaftsbionik\nPfarrweg 2\n74653 Künzelsau\nDeutschland"
+    "imprint": "Gradido-Akademie\nInstitut für Wirtschaftsbionik\nPfarrweg 2\n74653 Künzelsau\nDeutschland",
+    "imprintImageAlt": "Gradido-Akademie Logo",
+    "imprintImageURL": "https://gdd.gradido.net/img/brand/green.png"
   }
 }