feat: update to Angular 12 (#5868)

Author: yggg

angular.json

@@ -11,7 +11,6 @@
         "build": {
           "builder": "@angular-devkit/build-angular:browser",
           "options": {
-            "aot": true,
             "preserveSymlinks": true,
             "outputPath": "dist",
             "index": "src/index.html",
@@ -56,9 +55,14 @@
               "echarts",
               "lodash",
               "zrender/lib/svg/svg",
-              "zrender/lib/vml/vml",
-              "style-loader!leaflet/dist/leaflet.css"
-            ]
+              "zrender/lib/vml/vml"
+            ],
+            "vendorChunk": true,
+            "extractLicenses": false,
+            "buildOptimizer": false,
+            "sourceMap": true,
+            "optimization": false,
+            "namedChunks": true
           },
           "configurations": {
             "production": {
@@ -72,7 +76,6 @@
               "outputHashing": "all",
               "sourceMap": false,
               "namedChunks": false,
-              "aot": true,
               "extractLicenses": true,
               "vendorChunk": false,
               "buildOptimizer": true,
@@ -83,7 +86,8 @@
                 }
               ]
             }
-          }
+          },
+          "defaultConfiguration": ""
         },
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",