improve mailto link

client/components/ShareLink.vue

@@ -16,7 +16,7 @@
             <v-btn dark fab bottom color="green" small :href="`https://wa.me/?text=Checkout%20this%20page.%20${pageUrl}`" target="_blank">
             <v-icon>mdi-whatsapp</v-icon>
             </v-btn>
-            <v-btn dark fab bottom color="primary" small :href="`mailto:?subject=Awesomeness!&amp;body=Checkout this page!<a href='${pageUrl}'>${pageUrl}</a>`" target="_blank">
+            <v-btn dark fab bottom color="primary" small :href="`mailto:?subject=JASS analysis&amp;body=Here is an analysis computed in JASS: ${pageUrl}`" target="_blank" title="Send by mail">
             <v-icon>mdi-email</v-icon>
             </v-btn>
             <v-btn dark fab bottom color="primary" small v-on:click="copySign()" title="Copy to clipboard">