fix: tiny refactor on port forward

Walkthrough

The recent changes in pkg/k8s/k8s_pod.go focus on refining the PortForwardPod function. These improvements include restructuring variable and channel declarations, initializing stdout and stderr buffers directly, and enhancing error handling mechanisms during the port forwarding process.

Changes

File Path	Change Summary
`pkg/k8s/k8s_pod.go`	Restructured variable and channel declarations, initialized `stdout` and `stderr` buffers, and improved error handling in the `PortForwardPod` function.

Sequence Diagram(s) (Beta)

sequenceDiagram
    participant Client
    participant PortForwardPod
    participant stdout
    participant stderr
    participant stopChan
    participant readyChan
    participant errChan

    Client->>PortForwardPod: Call PortForwardPod()
    PortForwardPod->>stdout: Initialize new Buffer
    PortForwardPod->>stderr: Initialize new Buffer
    PortForwardPod->>stopChan: Create channel
    PortForwardPod->>readyChan: Create channel
    PortForwardPod->>errChan: Create channel
    PortForwardPod->>Client: Return initialized channels and buffers
    Client->>PortForwardPod: Handle port forwarding
    PortForwardPod->>errChan: Send error if any
    errChan->>Client: Receive error

Poem

In the realm of code so bright,
Channels and buffers take their flight,
Errors now caught with care so fine,
Port forwarding sings in perfect line.
A rabbit's joy, in bytes it shows,
Through streams and flows, the data goes.
🌟🐇✨

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celestiaorg / knuu