feat: Support `indeterminate` option in `BProgress.start()`

[programming-with-ia]

Feature Description

Description:

Add support for configuring the indeterminate state via:

BProgress.start(indeterminate?: boolean)

Use Cases

Sometimes we need both determinate (default) and indeterminate loaders, depending on whether the loading time is known or not. A boolean flag makes it easy to switch between them.

// Default determinate loader
BProgress.start();

// Indeterminate loader (e.g. unknown duration)
BProgress.start(true);

Package

@bprogress/core

Additional context

No response