fix(server): リアクションできない問題をとりあえず修正

[tamaina]

Fix #10502

What

Redisから返ってきた値がArrayではない場合データベースから取ってくることでお茶をにごす

Additional info (optional)

Checklist

• Read the contribution guide
• Test working in a local environment
• (If needed) Update CHANGELOG.md
• (If possible) Add tests

[codecov]

Codecov Report

Merging #10529 (17bada4) into develop (7bd0001) will decrease coverage by 3.56%.
The diff coverage is 68.03%.

❗ Current head 17bada4 differs from pull request most recent head 65e2f6b. Consider uploading reports for the commit 65e2f6b to get more accurate results

@@             Coverage Diff             @@
##           develop   #10529      +/-   ##
===========================================
- Coverage    78.59%   75.04%   -3.56%     
===========================================
  Files          161      885     +724     
  Lines        19647    87047   +67400     
  Branches       331     5880    +5549     
===========================================
+ Hits         15442    65323   +49881     
- Misses        4205    21724   +17519     

Impacted Files	Coverage Δ
packages/backend/src/core/DeleteAccountService.ts	55.00% <ø> (ø)
packages/backend/src/core/GlobalEventService.ts	93.54% <ø> (ø)
...e/processors/ImportCustomEmojisProcessorService.ts	21.48% <0.00%> (ø)
...queue/processors/WebhookDeliverProcessorService.ts	25.00% <0.00%> (ø)
packages/backend/src/server/ServerService.ts	48.68% <0.00%> (ø)
.../src/server/api/endpoints/admin/accounts/delete.ts	59.09% <ø> (ø)
...ckend/src/server/api/endpoints/admin/emoji/copy.ts	65.68% <ø> (ø)
...end/src/server/api/endpoints/admin/suspend-user.ts	55.55% <ø> (ø)
...backend/src/server/api/endpoints/antennas/notes.ts	58.67% <0.00%> (ø)
...ackend/src/server/api/endpoints/channels/follow.ts	75.80% <ø> (ø)
... and 108 more

... and 619 files with indirect coverage changes

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[syuilo]

🙏🏻