Translate the remaining words to Simplified Chinese (#1228)

## Launch Checklist

<!-- Thanks for the PR! Feel free to add or remove items from the
checklist. -->


 - [x] Briefly describe the changes in this PR.
 - [ ] Link to related issues.
- [ ] Include before/after visuals or gifs if this PR includes visual
changes.
 - [ ] Write tests for all new functionality.
 - [ ] Add an entry to `CHANGELOG.md` under the `## main` section.

src/locales/zh/translation.json

@@ -149,7 +149,7 @@
   "Raster (Tile URLs)": "栅格数据 (Tile URLs)",
   "Raster DEM (TileJSON URL)": "栅格高程数据 (TileJSON URL)",
   "Raster DEM (XYZ URLs)": "栅格高程数据 (XYZ URLs)",
-  "Vector (PMTiles)": "__STRING_NOT_TRANSLATED__",
+  "Vector (PMTiles)": "矢量数据 (PMTiles)",
   "Image": "图像",
   "Video": "视频",
   "Add Source": "添加源",
@@ -161,7 +161,7 @@
   "Add a new source to your style. You can only choose the source type and id at creation time!": "向您的样式添加新源。在创建时，您只能选择源类型和ID！",
   "TileJSON URL": "TileJSON URL",
   "Tile URL": "瓦片URL",
-  "Scheme Type": "__STRING_NOT_TRANSLATED__",
+  "Scheme Type": "瓦片方案",
   "Coord top left": "左上角坐标",
   "Coord top right": "右上角坐标",
   "Coord bottom right": "右下角坐标",
@@ -171,13 +171,13 @@
   "GeoJSON URL": "GeoJSON URL",
   "GeoJSON": "GeoJSON",
   "Cluster": "聚合",
-  "PMTiles URL": "__STRING_NOT_TRANSLATED__",
-  "Tile Size": "__STRING_NOT_TRANSLATED__",
+  "PMTiles URL": "PMTiles URL",
+  "Tile Size": "瓦片大小",
   "Encoding": "编码",
   "Error:": "错误：",
   "MapTiler Access Token": "MapTiler 访问令牌",
   "Public access token for MapTiler Cloud.": "MapTiler Cloud 的公共访问令牌。",
-  "Learn More": "__STRING_NOT_TRANSLATED__",
+  "Learn More": "了解更多",
   "Thunderforest Access Token": "Thunderforest 访问令牌",
   "Public access token for Thunderforest services.": "Thunderforest 服务的公共访问令牌。",
   "Stadia Maps API Key": "Stadia Maps API 密钥",