Merge pull request #1666 from touwaeriol/feat/account-cost-display

feat(usage): add account cost display to admin dashboard and usage pages

frontend/src/i18n/locales/en.ts

@@ -732,6 +732,7 @@ export default {
     totalCost: 'Total Cost',
     standardCost: 'Standard',
     actualCost: 'Actual',
+    accountCost: 'Cost',
     userBilled: 'User billed',
     accountBilled: 'Account billed',
     accountMultiplier: 'Account rate',
@@ -1039,6 +1040,7 @@ export default {
       tokens: 'Tokens',
       actual: 'Actual',
       standard: 'Standard',
+      accountCost: 'Cost',
       noDataAvailable: 'No data available',
       recentUsage: 'Recent Usage',
       viewModelDistribution: 'Model Distribution',