added tooltip for buttons

src/lib/VueJanus.vue

@@ -107,6 +107,7 @@
                 direction="top"
                 open-on-hover
         >
+
             <template v-slot:activator>
                 <v-btn
                         v-model="fab"
@@ -118,14 +119,27 @@
                     <v-icon v-else>mdi-cog-outline</v-icon>
                 </v-btn>
             </template>
+
+            <v-tooltip right>
+                <template v-slot:activator="{ on }">
                     <v-btn
+                        v-on="on"
                         fab
                         dark
                         small
                         @click="sharePdf=true"
                     >
                         <v-icon>mdi-pdf-box</v-icon>
-            </v-btn> <v-btn
+                    </v-btn> 
+                </template>
+
+                <span>Toggle Share PDF</span>
+            </v-tooltip>
+
+            <v-tooltip right>
+                <template v-slot:activator="{ on }">
+                    <v-btn
+                        v-on="on"
                         fab
                         dark
                         small
@@ -133,7 +147,15 @@
                     >
                         <v-icon>mdi-compare</v-icon>
                     </v-btn>
+                </template>
+
+                <span>Toggle Theme</span>
+            </v-tooltip>
+            
+            <v-tooltip right>
+                <template v-slot:activator="{ on }">
                     <v-btn
+                        v-on="on"
                             fab
                             dark
                             small
@@ -142,7 +164,15 @@
                     >
                         <v-icon>mdi-camera-outline</v-icon>
                     </v-btn>
+                </template>
+
+                <span>Toggle Camera</span>
+            </v-tooltip>
+            
+            <v-tooltip right>
+                <template v-slot:activator="{ on }">
                     <v-btn
+                        v-on="on"
                         fab
                         :dark="!screenShareStarted"
                         small
@@ -150,6 +180,10 @@
                     >
                         <v-icon>mdi-monitor-screenshot</v-icon>
                     </v-btn>
+                </template>
+
+                <span>Toggle Share Screen</span>
+            </v-tooltip>
         </v-speed-dial>
     </v-container>
 </template>