過去の移動経路を描画するよう修正

[rikeda71]

表題の通りです。 要望があったため対応しました。

愚直に実装すると Firebase への問い合わせ回数が多くなったり、マップへの描画が遅くなって UX を損なうので、以下のように対応しました。

• 1度目のカメラポジションが変わる描画（経路情報の可視化）では過去経路は描画しない（この時点ではお寺情報のキャッシュが取れていないので）
• 2度目の経路情報の可視化時にお寺情報のキャッシュの取得を待ってから、過去経路の描画も含めた経路情報をセット

[rikeda71]

過去経路は淡い桃色 * 少し細い線で可視化しています。 マップが青 or 緑 or 黄色で表現されているので、ピンや経路は赤よりの色が良いと考えています。

[codecov[bot]]

Codecov Report

Base: 53.93% // Head: 53.75% // Decreases project coverage by -0.18% :warning:

Coverage data is based on head (042fff1) compared to base (fe53fc5). Patch coverage: 31.25% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #98 +/- ## ========================================== - Coverage 53.93% 53.75% -0.18% ========================================== Files 117 117 Lines 2186 2195 +9 ========================================== + Hits 1179 1180 +1 - Misses 1007 1015 +8 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `53.75% <31.25%> (-0.18%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/s14t284/virtual-pilgrimage/pull/98?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda) | Coverage Δ | | |---|---|---| | [...grimage/update\_pilgrimage\_progress\_interactor.dart](https://codecov.io/gh/s14t284/virtual-pilgrimage/pull/98?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda#diff-bGliL2FwcGxpY2F0aW9uL3BpbGdyaW1hZ2UvdXBkYXRlX3BpbGdyaW1hZ2VfcHJvZ3Jlc3NfaW50ZXJhY3Rvci5kYXJ0) | `90.90% <ø> (ø)` | | | [lib/ui/pages/home/home\_presenter.dart](https://codecov.io/gh/s14t284/virtual-pilgrimage/pull/98?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda#diff-bGliL3VpL3BhZ2VzL2hvbWUvaG9tZV9wcmVzZW50ZXIuZGFydA==) | `23.07% <15.38%> (-1.57%)` | :arrow_down: | | [...rastructure/pilgrimage/temple\_repository\_impl.dart](https://codecov.io/gh/s14t284/virtual-pilgrimage/pull/98?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda#diff-bGliL2luZnJhc3RydWN0dXJlL3BpbGdyaW1hZ2UvdGVtcGxlX3JlcG9zaXRvcnlfaW1wbC5kYXJ0) | `59.52% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Ryuya+Ikeda)

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