i18n(ko): add missing translations(Jul 22)

[aaiss0927]

Add five missing Korean translations to restore key parity with the English locale, and replace the stale sort.lastRunStartDate entry with the renamed sort.lastRunAfter:

File	Key	English	Korean
dags.json	sort.lastRunAfter.asc	Sort by Latest Run After (Earliest-Latest)	최신 실행 이후로 정렬 (이전-최신)
dags.json	sort.lastRunAfter.desc	Sort by Latest Run After (Latest-Earliest)	최신 실행 이후로 정렬 (최신-이전)
common.json	dagDetails.team	Team	팀
common.json	table.noTeamsFound	No teams found	팀을 찾을 수 없습니다.
components.json	durationChart.medianTotalDuration	Total: {{duration}}	총: {{duration}}

Note: sort.lastRunStartDate was renamed to sort.lastRunAfter in the English locale, so this PR also removes the stale sort.lastRunStartDate entry from the ko locale (replaced in place).

The team-related keys (dagDetails.team, table.noTeamsFound) are only visible in the UI when [core] multi_team is enabled.

---

Screenshots

---

Test

breeze ui check-translation-completeness --language ko

cc @onestn @noeunkim

---

Was generative AI tooling used to co-author this PR?

• Yes (please specify the tool below)
  Claude Fable5

---

• Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
• For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
• When adding dependency, check compliance with the ASF 3rd Party License Policy.
• For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.