Use non-hardcoded telegram URL unless no browser is installed

app/src/main/java/com/frostnerd/smokescreen/Extensions.kt

@@ -430,7 +430,7 @@ val Context.isPrivateDnsActive: Boolean
         }
     }
 
-fun Context.tryOpenBrowser(withLink:String) {
+fun Context.tryViewUri(withLink:String, alternativeLink:String? = null) {
     try {
         startActivity(
             Intent(
@@ -439,7 +439,10 @@ fun Context.tryOpenBrowser(withLink:String) {
             )
         )
     } catch (e: ActivityNotFoundException) {
-        Toast.makeText(this, R.string.error_no_webbrowser_installed, Toast.LENGTH_LONG).show()
+        log("Got ${e.message} when trying to open link: $withLink")
+        if(alternativeLink != null) {
+            tryViewUri(alternativeLink)
+        } else Toast.makeText(this, R.string.error_no_webbrowser_installed, Toast.LENGTH_LONG).show()
     }
 }
 
@@ -462,5 +465,5 @@ fun Context.askOpenFAQ(topic: FAQTopic?) {
 }
 
 fun Context.openFAQ(topic:FAQTopic?) {
-    tryOpenBrowser("https://nebulo.app/faq#${topic?.id ?: ""}")
-}
\ No newline at end of file
+    tryViewUri("https://nebulo.app/faq#${topic?.id ?: ""}")
+}

app/src/main/java/com/frostnerd/smokescreen/activity/MainActivity.kt

@@ -157,11 +157,7 @@ class MainActivity : NavigationDrawerActivity() {
                 getString(R.string.dialog_join_group_message),
                 getString(R.string.dialog_join_group_positive) to { dialog, _ ->
                     dialog.dismiss()
-                    val intent = Intent(
-                        Intent.ACTION_VIEW,
-                        Uri.parse("tg://join?invite=I54nRleveRGP8IPmcIdySg")
-                    )
-                    startActivity(intent)
+                    tryViewUri("https://nebulo.app/community", "tg://join?invite=I54nRleveRGP8IPmcIdySg")
                 },
                 getString(R.string.dialog_crashreporting_negative) to { dialog, _ ->
                     dialog.dismiss()

app/src/main/java/com/frostnerd/smokescreen/fragment/AboutFragment.kt

@@ -56,8 +56,7 @@ class AboutFragment : Fragment() {
         }
         if(isPackageInstalled(requireContext(), "org.telegram.messenger")) {
             view.group.setOnClickListener {
-                val intent = Intent(Intent.ACTION_VIEW, Uri.parse("tg://join?invite=I54nRleveRGP8IPmcIdySg"))
-                startActivity(intent)
+                context?.tryViewUri("https://nebulo.app/community", "tg://join?invite=I54nRleveRGP8IPmcIdySg")
             }
         } else {
             view.group.visibility = View.GONE
@@ -124,7 +123,7 @@ class AboutFragment : Fragment() {
             true
         }
         view.faq.setOnClickListener {
-            requireContext().tryOpenBrowser("https://nebulo.app/faq")
+            requireContext().tryViewUri("https://nebulo.app/faq")
         }
     }