ui: notifications: pull in UX improvements for match rules creation

ui: notifications: pull in UX improvements for match rules creation

These changes have not been applied yet in widget toolkit, but
are very valuable for the initial integration in PBS.
We override modified components and replace them with the patched
variants.
The changes change the edit window such that known field names and
values are suggested in a combobox. Also, the 'exact' match mode
can now match multiple values.

This can and *should* be removed once the changes from [1] are
merged into the widget toolkit.

[1] https://lists.proxmox.com/pipermail/pve-devel/2024-April/063539.html

Suggested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>