Make biome-linter ignore ts files in optuna_dashboard

[porink0424]

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This repository (optuna-dashboard) and Goptuna share common code.
This pull request may therefore be ported to Goptuna.
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Reference Issues/PRs

NA

What does this implement/fix? Explain your changes.

TS files in optuna_dashboard used to be double checked by biome-linter and eslint. I made an update that makes biome-linter ignore those files so that only eslint checks them.

Also, in the script npm run fmt, I added organizeImport into optuna_dashboard.

[c-bata]

@porink0424 Could you fix the following error?

$ npm run lint

> lint
> npm run lint:eslint && npm run lint:biome


> lint:eslint
> eslint . --ext .ts,.tsx --max-warnings 0

=============

WARNING: You are currently running a version of TypeScript which is not officially supported by @typescript-eslint/typescript-estree.

You may find that it works just fine, or you may not.

SUPPORTED TYPESCRIPT VERSIONS: >=4.3.5 <5.4.0

YOUR TYPESCRIPT VERSION: 5.4.2

Please only submit bug reports when using the officially supported version.

=============

> lint:biome
> biome format . && biome ci .

./biome.json format ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Formatter would have printed the following content:

    21 21 │     },
    22 22 │     "linter": {
    23    │ - → → "ignore":·[
    24    │ - → → → "optuna_dashboard/ts/**/*.ts",
    25    │ - → → → "optuna_dashboard/ts/**/*.tsx"
    26    │ - → → ]
       23 │ + → → "ignore":·["optuna_dashboard/ts/**/*.ts",·"optuna_dashboard/ts/**/*.tsx"]
    27 24 │     },
    28 25 │     "javascript": {


Checked 99 files in 1129ms. No fixes needed.
Found 1 error.
format ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Some errors were emitted while running checks.