Merge pull request #2574 from nextcloud/clarifySpreedNotAvailableText

add more precise text when spreed is not available

app/src/main/res/values/strings.xml

@@ -58,7 +58,7 @@
     <string name="nc_capabilities_failed">Failed to fetch capabilities, aborting</string>
     <string name="nc_external_server_failed">Failed to fetch signaling settings</string>
     <string name="nc_display_name_not_fetched">Display name couldn\'t be fetched, aborting</string>
-    <string name="nc_nextcloud_talk_app_not_installed">%1$s app not installed on the server, aborting</string>
+    <string name="nc_nextcloud_talk_app_not_installed">%1$s not available (not installed or restricted by admin)</string>
     <string name="nc_display_name_not_stored">Could not store display name, aborting</string>
 
     <string name="nc_never">Never joined</string>