feat!: move to esm and drop support for vue 2.6

src/global.ts

@@ -1,7 +0,0 @@
-import "echarts";
-import ECharts, * as exported from "./index";
-
-export default {
-  ...ECharts,
-  ...exported
-};

src/index.vue2.d.ts

@@ -1,6 +1,5 @@
 /* eslint-disable @typescript-eslint/ban-types */
-import type { DefineComponent } from "@vue/runtime-core";
-import type { Ref } from "vue-demi";
+import type { Ref, DefineComponent } from "vue-demi";
 import type {
   Option,
   InitOptions,

src/index.vue2_7.d.ts

@@ -1,63 +0,0 @@
-/* eslint-disable @typescript-eslint/ban-types */
-import type { Ref, DefineComponent } from "vue-demi";
-import type {
-  Option,
-  InitOptions,
-  UpdateOptions,
-  EChartsType,
-  Emits
-} from "./types";
-
-declare const LOADING_OPTIONS_KEY = "ecLoadingOptions";
-declare const THEME_KEY = "ecTheme";
-declare const INIT_OPTIONS_KEY = "ecInitOptions";
-declare const UPDATE_OPTIONS_KEY = "ecUpdateOptions";
-
-declare type ChartProps = {
-  loading?: boolean;
-  loadingOptions?: Record<string, unknown>;
-  autoresize?: boolean;
-  option?: Option;
-  theme?: string | Record<string, unknown>;
-  initOptions?: InitOptions;
-  updateOptions?: UpdateOptions;
-  group?: string;
-  manualUpdate?: boolean;
-};
-
-type MethodNames =
-  | "getWidth"
-  | "getHeight"
-  | "getDom"
-  | "getOption"
-  | "resize"
-  | "dispatchAction"
-  | "convertToPixel"
-  | "convertFromPixel"
-  | "containPixel"
-  | "getDataURL"
-  | "getConnectedDataURL"
-  | "appendData"
-  | "clear"
-  | "isDisposed"
-  | "dispose"
-  | "setOption";
-
-declare type ChartMethods = Pick<EChartsType, MethodNames>;
-
-declare const Chart: DefineComponent<
-  ChartProps,
-  {
-    root: Ref<HTMLElement | undefined>;
-    chart: Ref<EChartsType | undefined>;
-  },
-  {},
-  {},
-  ChartMethods,
-  {},
-  {},
-  Emits
->;
-
-export default Chart;
-export { INIT_OPTIONS_KEY, LOADING_OPTIONS_KEY, THEME_KEY, UPDATE_OPTIONS_KEY };