webui-vue: srcrev bump 151dd2491c..ff8c5cd23f

Dixsie Wolmers (1):
      Align button icons

Yoshie Muranaka (1):
      Add SNMP settings route to app navigation

(From meta-phosphor rev: 8f657e9714dda306f6a001245074a7b656061820)

Change-Id: If25c303cda280730f19037ea7c39f34a335e2386
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>