Review eslint config (#3269)

- Remove "prettier" from plugin array, because it's already enabled by
"plugin:prettier/recommended"
- Remove "jsdoc" from plugin array, because it's already enabled by
"plugin:jsdoc/recommended"
- Enable recommended import rules
- Add two additional import rules

Note: To avoid overloading this PR I'll tackle the jest part with
another PR after this one has been dealt with.

.eslintrc.json

@@ -1,6 +1,6 @@
 {
-	"extends": ["eslint:recommended", "plugin:prettier/recommended", "plugin:jsdoc/recommended"],
-	"plugins": ["prettier", "import", "jsdoc", "jest"],
+	"extends": ["eslint:recommended", "plugin:import/recommended", "plugin:jsdoc/recommended", "plugin:prettier/recommended"],
+	"plugins": ["jest"],
 	"env": {
 		"browser": true,
 		"es2022": true,
@@ -24,6 +24,8 @@
 	"rules": {
 		"eqeqeq": "error",
 		"import/order": "error",
+		"import/extensions": "error",
+		"import/newline-after-import": "error",
 		"no-param-reassign": "error",
 		"no-prototype-builtins": "off",
 		"no-throw-literal": "error",