PLT-2994 Added @all (#3233)

* Added @all

* Uncomment @all server side

api/post.go

@@ -536,10 +536,10 @@ func sendNotifications(c *Context, post *model.Post, team *model.Team, channel *
 				keywordMap[profile.FirstName] = append(keywordMap[profile.FirstName], profile.Id)
 			}
 
-			// Add @all to keywords if user has them turned on
-			// if profile.NotifyProps["all"] == "true" {
-			// 	keywordMap["@all"] = append(keywordMap["@all"], profile.Id)
-			// }
+			//Add @all to keywords if user has them turned on
+			if profile.NotifyProps["all"] == "true" {
+				keywordMap["@all"] = append(keywordMap["@all"], profile.Id)
+			}
 
 			// Add @channel to keywords if user has them turned on
 			if profile.NotifyProps["channel"] == "true" {