Update Ionic to v6 (ionic-team#1752)

Author: averyjohnston

browserslist renamed to .browserslistrc

@@ -0,0 +1,44 @@
+{
+  "root": true,
+  "ignorePatterns": [
+    "projects/**/*"
+  ],
+  "overrides": [
+    {
+      "files": [
+        "*.ts"
+      ],
+      "parserOptions": {
+        "project": [
+          "tsconfig.json",
+          "e2e/tsconfig.json"
+        ],
+        "createDefaultProgram": true
+      },
+      "extends": [
+        "plugin:@angular-eslint/recommended",
+        "plugin:@angular-eslint/template/process-inline-templates"
+      ],
+      "rules": {
+        "@angular-eslint/directive-selector": [
+          "error",
+          {
+            "type": "attribute",
+            "prefix": "app",
+            "style": "camelCase"
+          }
+        ],
+        "@angular-eslint/component-class-suffix": "off"
+      }
+    },
+    {
+      "files": [
+        "*.html"
+      ],
+      "extends": [
+        "plugin:@angular-eslint/template/recommended"
+      ],
+      "rules": {}
+    }
+  ]
+}

.eslintrc.json

@@ -1,3 +1,4 @@
+/.angular/cache
 # Specifies intentionally untracked files to ignore when using Git
 # http://git-scm.com/docs/gitignore
 www/

.gitignore

@@ -33,13 +33,21 @@
             ],
             "styles": [
               {
-                "input": "src/theme/variables.scss"
+                "input": "src/theme/variables.scss",
+                "inject": true
               },
               {
-                "input": "src/global.scss"
+                "input": "src/global.scss",
+                "inject": true
               }
             ],
-            "scripts": []
+            "scripts": [],
+            "vendorChunk": true,
+            "extractLicenses": false,
+            "buildOptimizer": false,
+            "sourceMap": true,
+            "optimization": false,
+            "namedChunks": true
           },
           "configurations": {
             "production": {
@@ -52,9 +60,7 @@
               "optimization": true,
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
-              "aot": true,
               "extractLicenses": true,
               "vendorChunk": false,
               "buildOptimizer": true,
@@ -64,13 +70,24 @@
                   "type": "initial",
                   "maximumWarning": "2mb",
                   "maximumError": "5mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb"
                 }
               ]
             },
             "ci": {
+              "budgets": [
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb"
+                }
+              ],
               "progress": false
             }
-          }
+          },
+          "defaultConfiguration": ""
         },
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",
@@ -82,9 +99,7 @@
             "production": {
               "browserTarget": "app:build:production"
             },
-            "ci": {
-              "progress": false
-            }
+            "ci": {}
           }
         },
         "extract-i18n": {
@@ -102,10 +117,12 @@
             "karmaConfig": "src/karma.conf.js",
             "styles": [
               {
-                "input": "src/theme/variables.scss"
+                "input": "src/theme/variables.scss",
+                "inject": true
               },
               {
-                "input": "src/global.scss"
+                "input": "src/global.scss",
+                "inject": true
               }
             ],
             "scripts": [],
@@ -129,17 +146,6 @@
             }
           }
         },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json",
-              "e2e/tsconfig.json"
-            ],
-            "exclude": ["**/node_modules/**"]
-          }
-        },
         "e2e": {
           "builder": "@angular-devkit/build-angular:protractor",
           "options": {
@@ -178,12 +184,21 @@
               "devServerTarget": "app:serve:production"
             }
           }
+        },
+        "lint": {
+          "builder": "@angular-eslint/builder:lint",
+          "options": {
+            "lintFilePatterns": [
+              "src/**/*.ts",
+              "src/**/*.html"
+            ]
+          }
         }
       }
     }
   },
   "cli": {
-    "defaultCollection": "@ionic/angular-toolkit"
+    "defaultCollection": "@angular-eslint/schematics"
   },
   "schematics": {
     "@ionic/angular-toolkit:component": {

angular.json

@@ -3,7 +3,7 @@
   "compilerOptions": {
     "outDir": "../out-tsc/app",
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2018",
     "types": [
       "jasmine",
       "jasminewd2",