message: use import_map.json on install
diff: @@ -31,20 +31,11 @@ export async function run(args) {
  "install",
  "--unstable",
  "-Afr",
  + `--import-map=https://deno.land/x/lume@${latest}/import_map.json`,
  `https://deno.land/x/lume@${latest}/cli.js`,
  ],
  }).status();
  - await Deno.run({
  - cmd: [
  - "deno",
  - "cache",
  - "--unstable",
  - "-r",
  - `https://deno.land/x/lume/mod.js`,
  - ],
  - }).status();
  -
  console.log();
  console.log(
  `Update successful! You're using the latest version of lume: ${
  