feat: add partner → campaign edges with distinct color to referral network

src/locales/en.json

@@ -1253,6 +1253,7 @@
         "partner": "Partner",
         "topReferrer": "Top referrer (10+)",
         "campaignUser": "From campaign",
+        "partnerCampaignEdge": "Partner → Campaign",
         "campaignNode": "Ad campaign"
       },
       "user": {

src/locales/fa.json

@@ -1087,6 +1087,7 @@
         "partner": "شریک",
         "topReferrer": "ارجاع‌دهنده برتر (+۱۰)",
         "campaignUser": "از کمپین",
+        "partnerCampaignEdge": "شریک → کمپین",
         "campaignNode": "کمپین تبلیغاتی"
       },
       "user": {

src/locales/ru.json

@@ -1274,6 +1274,7 @@
         "partner": "Партнёр",
         "topReferrer": "Топ-реферер (10+)",
         "campaignUser": "Из кампании",
+        "partnerCampaignEdge": "Партнёр → РК",
         "campaignNode": "Рекламная кампания"
       },
       "user": {

src/locales/zh.json

@@ -1087,6 +1087,7 @@
         "partner": "合作伙伴",
         "topReferrer": "顶级推荐人 (10+)",
         "campaignUser": "来自活动",
+        "partnerCampaignEdge": "合作伙伴 → 活动",
         "campaignNode": "广告活动"
       },
       "user": {