Fix some bugs

frontend/pages/account.vue

@@ -1,14 +1,19 @@
 <template>
     <v-col cols="12" sm="8" md="6">
-        <v-card color="primary" dark>
+        <v-card color="primary" class="white--text">
             <v-btn icon to="/" aria-label="Go back">
-                <v-icon>{{ mdiArrowLeft }}</v-icon>
+                <v-icon color="white">{{ mdiArrowLeft }}</v-icon>
             </v-btn>
             <v-card-title class="text-center justify-center py-6">
-                <h1 class="font-weight-bold display-2">Account</h1>
+                <h1
+                    :class="{ 'white--text': !$vuetify.theme.dark }"
+                    class="font-weight-bold display-2"
+                >
+                    Account
+                </h1>
             </v-card-title>
 
-            <v-tabs v-model="tab" background-color="transparent" dark grow>
+            <v-tabs v-model="tab" grow>
                 <v-tab v-for="tab in tabs" :key="tab">
                     {{ tab }}
                 </v-tab>