[PATCH manager] fix #7386: ui: make memory window compatible with older browsers again

[Dominik Csapak <d.csapak@proxmox.com>]

while this is supported in most modern browsers, it's not supported in
(still updated) older Firefox ESR versions.

This was introduced in ECMAscript version 2025, which is against our
style guide that suggests we should stick to ES 2024 features for
trixie.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
Usually I'd not go back with such things, but since it's just a one line
fix and technically the code was against our style guide, i think it's
fine.


 www/manager6/qemu/MemoryEdit.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/www/manager6/qemu/MemoryEdit.js b/www/manager6/qemu/MemoryEdit.js
index ff4a7545..0f6bd656 100644
--- a/www/manager6/qemu/MemoryEdit.js
+++ b/www/manager6/qemu/MemoryEdit.js
@@ -65,7 +65,7 @@ Ext.define('PVE.qemu.MemoryInputPanel', {
         }
 
         if (deleteSet.size > 0) {
-            res.delete = deleteSet.keys().toArray().join(',');
+            res.delete = Array.from(deleteSet.keys()).join(',');
         }
 
         return res;
-- 
2.47.3