Change distance travelled label to title

See https://github.com/owntracks/frontend/issues/22#issuecomment-583698919

src/components/AppHeader.vue

@@ -99,14 +99,11 @@
     </nav>
     <nav class="nav-shrink">
       <div
-        class="nav-item"
         v-if="$config.showDistanceTravelled && distanceTravelled"
+        class="nav-item"
+        :title="$t('Distance travelled')"
       >
-        {{
-          $t("Distance travelled: {distance}", {
-            distance: humanReadableDistance(distanceTravelled),
-          })
-        }}
+        {{ humanReadableDistance(distanceTravelled) }}
       </div>
       <div class="nav-item">
         <button

src/locales/de.json

@@ -10,7 +10,7 @@
   "Select user": "Benutzer auswählen",
   "Show all": "Alle anzeigen",
   "Select device": "Gerät auswählen",
-  "Distance travelled: {distance}": "Gereiste Entfernung: {distance}",
+  "Distance travelled": "Gereiste Entfernung",
   "Download raw data": "Rohdaten herunterladen",
   "Information": "Information",
   "Show last known locations": "Zeige letzte bekannte Standorte",

src/locales/en.json

@@ -10,7 +10,7 @@
   "Select user": "Select user",
   "Show all": "Show all",
   "Select device": "Select device",
-  "Distance travelled: {distance}": "Distance travelled: {distance}",
+  "Distance travelled": "Distance travelled",
   "Download raw data": "Download raw data",
   "Information": "Information",
   "Show last known locations": "Show last known locations",