Translate /assets/locales/ja.json in en (#6385)

translation completed for the source file '/assets/locales/ja.json'
on the 'en' language.

Co-authored-by: transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>

assets/locales/en.json

@@ -787,10 +787,10 @@
   "感染状況・医療提供体制（サマリ） {date}時点": "Infection situation and system for the provision of health care data summary (as of {date}）",
   "新規陽性者{newPositiveCases}人 / 検査数{tests}件（{statisticDate}参考値 （3日間移動平均））、うち65歳以上の高齢者数{older65}人、死亡者数{deaths}人、都外からの持込検体による陽性数{samplesFromOutside}": "New positive cases {newPositiveCases} (of which {older65} are 65 or older) / Tests {tests} (Tested around ‎{statisticDate} (Three-day moving average)) / Deaths {deaths} / Positive cases from samples sent in from outside Tokyo {samplesFromOutside}",
   "入院数{hospitalized}人（確保病床数{bedsSecured}床）、うち重症者数{severeCases}人（うち重症病床数{bedsSevereSymptoms}床）": "Hospitalized {hospitalized} (of which {severeCases} are severe cases) / Beds secured {bedsSecured} (of which {bedsSevereSymptoms} are beds for patients with severe symptoms)",
-  "接種回数（１回目・累計）": "接種回数（１回目・累計）",
+  "接種回数（１回目・累計）": "First vaccinations (cumulative)",
   "{dateEnd}累計値": " Cumulative total as of {dateEnd}",
-  "接種回数（２回目・累計）": "接種回数（２回目・累計）",
-  "対象者 約311万人": "対象者 約311万人",
-  "ワクチン接種記録システム（VRS）への報告を居住地の都道府県別に国が集計し、公表したものに基づき作成": "ワクチン接種記録システム（VRS）への報告を居住地の都道府県別に国が集計し、公表したものに基づき作成",
-  "ワクチン接種回数（高齢者・累計）": "ワクチン接種回数（高齢者・累計）"
+  "接種回数（２回目・累計）": "Second vaccinations (cumulative)",
+  "対象者 約311万人": "Number of eligible people: about 3.11 million",
+  "ワクチン接種記録システム（VRS）への報告を居住地の都道府県別に国が集計し、公表したものに基づき作成": "Based on per-prefecture data published by Japanese government using reports to Vaccination Record System (VRS)",
+  "ワクチン接種回数（高齢者・累計）": "Number of vaccinations (older persons, cumulative)"
 }