Value padding support for Network module

[chunix64]

"network": {
    "format": " Unknown",
    "format-disconnected": " Disconnected",
    "format-wifi": " {bandwidthDownBytes:>9}  {bandwidthUpBytes:>9}",
    "format-ethernet": " {bandwidthDownBytes}  {bandwidthUpBytes}",
    "tooltip-format": "Interface:  {ifname}\nIP Address: {ipaddr}\nGateway:    {gwaddr}\nNetmask:    {netmask} / {cidr}\nSSID:       {essid}\nSignal:     {signalStrength}% ({signaldBm} dBm)\nFrequency:  {frequency} GHz\nUpload:     {bandwidthUpBytes}\nDownload:   {bandwidthDownBytes}\nTotal:      {bandwidthTotalBytes}",
    "interval": 2
  },

It works with :>9 but module disappear after :0>9 (padding with 0). Wireplumber module supports it, but some modules doesn't.

Log:

[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.726] [error] network: unknown format specifier
[2025-11-03 03:46:12.833] [error] network: unknown format specifier

[chunix64]

And also, please add padding with custom string at the end and the beginning.

• Normal padding: {icon} 0000text% and {icon} text0000%
• Customize: 0000{icon} text% and {icon} text%0000 (for avoid module auto resizing).

Try change the number zeroes with spaces. {icon} + {layoutVariable} + %. It will make a extra gap in either of them

Layout: {Icon} {Unknown length text} {percentage symbol}

Current behaviors:

• X 000001.1% or X 1.1%
• X 1.100000% or X 1.1 %

Expected behaviors:

• X 1.1%
• X 1.1%