refactor: use utils.debounce

fixes socket message spam in chat resize

public/src/utils.js

@@ -771,6 +771,26 @@
 				}
 			};
 		},
+		throttle: function (func, wait, immediate) {
+			var timeout;
+			return function () {
+				var context = this;
+				var args = arguments;
+				var later = function () {
+					timeout = null;
+					if (!immediate) {
+						func.apply(context, args);
+					}
+				};
+				var callNow = immediate && !timeout;
+				if (!timeout) {
+					timeout = setTimeout(later, wait);
+				}
+				if (callNow) {
+					func.apply(context, args);
+				}
+			};
+		},
 	};
 
 	return utils;