fixed: screen share buttons overflowing from dialog

src/lib/VueJanus.vue

@@ -10,7 +10,7 @@
 
         <v-dialog
                 v-model="mozillaAlert"
-                max-width="290"
+                max-width="410"
         >
             <v-card>
                 <v-card-title class="headline">Share whole screen or a window?</v-card-title>
@@ -19,13 +19,16 @@
                     Firefox handles screensharing in a different way: are you going to share the whole screen, or would you rather pick a single window/application to share instead?
                 </v-card-text>
                 <v-card-actions>
+                    <v-spacer></v-spacer>
                     <v-btn @click="shareScreenStart('screen')">Share a screen</v-btn>
+                    <v-spacer></v-spacer>
                     <v-btn @click="shareScreenStart('window')">Share a window</v-btn>
+                    <v-spacer></v-spacer>
                 </v-card-actions>
             </v-card>
         </v-dialog><v-dialog
                 v-model="chromeAlert"
-                max-width="290"
+                max-width="410"
         >
             <v-card>
                 <v-card-title class="headline">Chrome Extension Error</v-card-title>