v15.13.0

What's Changed

• build: pin frappe & erpnext requirements to ^15.0.0 by @ruchamahabal in #1460
• fix: german translations by @barredterra in #1463
• fix(Staffing Plan): honour company default currency (backport #1461) by @mergify in #1468
• fix: enable no copy for Pending Amount & Returned Amount (backport #1466) by @mergify in #1471
• fix(Payroll Entry): consideration of Salary Slip Based on Timesheet as a filter query when it is disabled (backport #1474) by @mergify in #1482
• refactor: update exchange rate of reference document supplied by reconciliation tool (backport #1489) by @mergify in #1491
• fix: german translations for "leave" by @barredterra in #1500
• feat(PWA): Push Notifications (backport #1384) by @mergify in #1499
• fix: company fixture setup error handling & flags (backport #1504) by @mergify in #1506
• fix(PWA): decouple FCM initialization failures from service worker registrations (backport #1507) by @mergify in #1508
• refactor: replace in_list(array, member) with array.includes(member) (backport #1513) by @mergify in #1515
• feat: Bulk Salary Structure Assignment (backport #1367) by @mergify in #1517

Full Changelog: v15.12.0...v15.13.0