message: feat(frontend): Always shows embed button in top-right corner
diff: <template lang="html">
  - <v-sheet style="height: 100%" class="transparent">
  + <v-sheet style="height: 100%; position: relative" class="transparent">
  + <v-menu v-if="!embeded" bottom close-on-click offset-y>
  + <template #activator="{ on: onMenu, attrs: menuAttrs }">
  + <v-tooltip left color="primary">
  + <template #activator="{ on: onTooltip, attrs: tooltipAttrs }">
  + <v-btn
  + style="position: absolute; top: 1em; right: 1em; z-index: 3"
  + color="primary"
  + fab
  + x-small
  + v-bind="{ ...tooltipAttrs, ...menuAttrs }"
  + v-on="{ ...onTooltip, ...onMenu }"
  + >
  + <v-icon small>mdi-share-variant</v-icon>
  + </v-btn>
  + </template>
  + Embed 3D Viewer
  + </v-tooltip>
  + </template>
  + <v-list dense>
  + <v-list-item @click="copyIFrame">
  + <v-list-item-title>Copy iframe</v-list-item-title>
  + </v-list-item>
  + <v-list-item @click="copyEmbedUrl">
  + <v-list-item-title>Copy URL</v-list-item-title>
  + </v-list-item>
  + </v-list>
  + </v-menu>
  <v-alert
  v-show="showAlert"
  text
  >
  <!-- -->
  <v-btn-toggle class="elevation-0" style="z-index: 100">
  - <v-menu v-if="!embeded" top close-on-click offset-y>
  - <template #activator="{ on: onMenu, attrs: menuAttrs }">
  - <v-tooltip top>
  - <template #activator="{ on: onTooltip, attrs: tooltipAttrs }">
  - <v-btn
  - small
  - v-bind="{ ...tooltipAttrs, ...menuAttrs }"
  - v-on="{ ...onTooltip, ...onMenu }"
  - >
  - <v-icon small>mdi-share-variant</v-icon>
  - </v-btn>
  - </template>
  - Embed 3D Viewer
  - </v-tooltip>
  - </template>
  - <v-list dense>
  - <v-list-item @click="copyIFrame">
  - <v-list-item-title>Copy iframe</v-list-item-title>
  - </v-list-item>
  - <v-list-item @click="copyEmbedUrl">
  - <v-list-item-title>Copy URL</v-list-item-title>
  - </v-list-item>
  - </v-list>
  - </v-menu>
  <v-btn
  - v-show="selectedObjects.length !== 0 && (showSelectionHelper || fullScreen)"
  + v-if="selectedObjects.length !== 0 && (showSelectionHelper || fullScreen)"
  small
  color="primary"
  @click="showObjectDetails = !showObjectDetails"
  