Feature/email support (#720)

* feat(frontend): ✨ add UI for testing email configuration

* feat(backend): ✨ add email service with common templates (WIP)

* test(backend): ✅ add basic tests for email configuration

* set defaults

* add email variables

Co-authored-by: Hayden <hay-kot@pm.me>

frontend/components/global/BaseCardSectionTitle.vue

@@ -1,7 +1,11 @@
 <template>
   <v-card flat class="pb-2">
-    <h2 class="headline">{{ title }}</h2>
-    <!-- <BaseDivider width="200px" color="primary" class="my-2" thickness="1px" /> -->
+    <v-card-title class="headline py-0">
+      <v-icon v-if="icon !== ''" left>
+        {{ icon }}
+      </v-icon>
+      {{ title }}
+    </v-card-title>
     <p class="pb-0 mb-0">
       <slot />
     </p>
@@ -16,6 +20,10 @@ export default {
       type: String,
       default: "Place Holder",
     },
+    icon: {
+      type: String,
+      default: "",
+    },
   },
 };
 </script>