perf(font): 优化字体渲染并添加抗锯齿设置

- 在所有字体文件中添加 keep_rounding_remainders 属性，提高字体渲染质量
- 更新项目设置，启用抗锯齿功能
- 调整场景文件中的资源引用，添加 UID 信息

engine/scenes/world/maps/time_zone.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=4 format=3 uid="uid://dfaisex3l6i08"]
 
-[ext_resource type="Script" path="res://scripts/world/map/time_zone.gd" id="1_sfymv"]
+[ext_resource type="Script" uid="uid://dos6xm3j7fd7h" path="res://scripts/world/map/time_zone.gd" id="1_sfymv"]
 
 [sub_resource type="Animation" id="Animation_if6nj"]
 resource_name = "default"
@@ -21,7 +21,7 @@ tracks/0/keys = {
 
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_ij2kp"]
 _data = {
-"default": SubResource("Animation_if6nj")
+&"default": SubResource("Animation_if6nj")
 }
 
 [node name="TimeZone" type="CanvasModulate"]