Add ESModule support

src/index.ts

@@ -1,11 +1,11 @@
-import { LoggingBase } from "./base";
-export { ConsoleAdapter } from "./consolewriter";
+import { LoggingBase } from "./base.js";
+export { ConsoleAdapter } from "./consolewriter.js";
 export {
    LoggingBase,
    LoggingBaseOptions,
    removeColors,
    withColor,
-} from "./base";
+} from "./base.js";
 export {
    Adapter,
    LoggingTypes,
@@ -18,7 +18,7 @@ export {
    Format,
    FormatTypes,
    TerminalFormats,
-} from "./types";
+} from "./types.js";
 
 export { ObservableInterface } from "@hibas123/utils";