openstreetmap attribution on map in new municipality mode

Author: ratron

vue/src/components/SnapshotMap.vue

@@ -1,3 +1,16 @@
+<!-- eslint-disable -->
+<i18n>
+{
+  "de": {
+    "map": "Karte"
+  },
+  "fr": {
+    "map": "Carte"
+  }
+}
+</i18n>
+<!-- eslint-enable -->
+
 <template>
     <v-content>
       <v-slide-x-reverse-transition>
@@ -46,6 +59,13 @@
           :sources="sources"
         />
       </v-card>
+      <p
+        v-if="!hash"
+        id="mapattribution"
+        class="small mb-0"
+        >
+      <a href="https://www.openstreetmap.org/copyright" target="_blank">{{ $t('map') }}: Mapbox, © OpenStreetMap</a>
+      </p>
     </v-content>
 </template>
 
@@ -103,6 +123,11 @@ body,
     pointer-events: auto;
     clip-path: circle(100% at center);
 }
+#mapattribution {
+    position: absolute;
+    bottom: 0.5em;
+    right: 1em;
+}
 
 .mapbox-improve-map {
     display: none;