message: feat(ui): refresh CC values
diff: v-for="(group, className) in commandGroups"
  :key="className"
  >
  - <v-expansion-panel-header>{{ className }}</v-expansion-panel-header>
  + <v-expansion-panel-header>
  + <v-row>
  + <span style="margin: auto 0">{{ className }}</span>
  + <v-btn
  + @click.stop="
  + apiRequest('refreshCCValues', [
  + node.id,
  + group[0].commandClass
  + ])
  + "
  + class="ml-5"
  + x-small
  + >
  + Refresh
  + </v-btn>
  + </v-row></v-expansion-panel-header
  + >
  <v-expansion-panel-content>
  <v-card flat>
  <v-card-text>
  