Fill the lesson summary text fields

aleksis/apps/alsijil/frontend/components/documentation/LessonSummary.vue

@@ -3,6 +3,7 @@
     <!-- Are focusout & enter enough trigger? -->
     <!-- TODO: focusout on enter -->
     <v-text-field
+      filled
       label="Thema"
       :value="documentation.topic"
       @input="topic=$event"
@@ -10,12 +11,14 @@
       @keydown.enter="saveTopic"
     />
     <v-text-field
+      filled
       v-if="!compact"
       label="Hausaufgaben"
       :value="documentation.homework"
       @input="homework=$event"
     />
     <v-text-field
+      filled
       v-if="!compact"
       label="Gruppennotiz"
       :value="documentation.groupnote"