`zfsNode.initContainers` should be a list

[michaelbeaumont]

Describe the problem/challenge you have
The chart converts this value into initContainers by ordering them according to their name. But init containers are inherently ordered so it's surprising and error prone to only be able to order them by naming them appropriately, not to mention awkwardly.

Describe the solution you'd like
This value should accept a list.

Environment:

• LocalPV-ZFS version: 2.8.0
• Kubernetes version (use kubectl version): 1.34.1
• Kubernetes installer & version: Talos
• Cloud provider or hardware configuration: bare metal
• OS (e.g. from /etc/os-release): Talos

[Abhinandan-Purkait]

@michaelbeaumont Sounds fair, would you be interested in taking a stab at it? Thanks!