Small fixes (#111)

* Fix table spacing

* Add back arrow to Discovery Metadata

Author: webb-ben

src/components/data/DataTable.vue

@@ -12,7 +12,7 @@
         </v-row>
       </v-container>
 
-      <v-table v-show="title !== ''" fixed-header height="500px">
+      <v-table v-show="title !== ''" fixed-header height="470px">
         <thead>
           <tr>
             <th class="text-center">

src/components/station/StationInfo.vue

@@ -9,8 +9,8 @@
         {{ selectedStation?.properties.name || $t("chart.station") }}
       </v-toolbar-title>
 
-      <template v-slot:prepend v-if="selectedStation">
-        <v-btn icon @click="store.clearSelectedStation">
+      <template v-slot:prepend>
+        <v-btn icon @click="selectedStation ? store.clearSelectedStation() : $router.push('/')">
           <v-icon icon="mdi-arrow-left"></v-icon>
         </v-btn>
       </template>