Add Happ client export open link (#3542)

Co-authored-by: y.sivushkin <[email protected]>

web/assets/js/subscription.js

@@ -142,7 +142,10 @@
       },
       npvtunUrl() {
         return this.app.subUrl; 
-      }
+      },
+	  happUrl() {
+		return `happ://add/${encodeURIComponent(this.app.subUrl)}`;
+	  }
     },
     methods: {
       renderLink,

web/html/settings/panel/subscription/subpage.html

@@ -218,6 +218,8 @@
                                             <a-menu-item key="android-npvtunnel"
                                                 @click="copy(app.subUrl)">NPV
                                                 Tunnel</a-menu-item>
+											<a-menu-item key="android-happ"
+                                                @click="open('happ://add/' + encodeURIComponent(app.subUrl))">Happ</a-menu-item>	
                                         </a-menu>
                                     </a-dropdown>
                                 </a-col>
@@ -244,6 +246,8 @@
                                                 @click="copy(npvtunUrl)">NPV
                                                 Tunnel
                                             </a-menu-item>
+											<a-menu-item key="ios-happ"
+                                                @click="open(happUrl)">Happ</a-menu-item>
                                         </a-menu>
                                     </a-dropdown>
                                 </a-col>