Formating removes vertical alignment of values

Describe the bug

When formatting the whitespace used for vertical alignment of values is removed, even though the YAML specs allow and encourage it.

Currently there is no way to work around this issue except by disabling the formatter. Installing the Prettier extension keeps the alignment but does not enforce it (by default).

Expected Behavior

When formatting, values vertical alignment to be kept or added

tree:
    fruit:    "pear"
    name:     "peartree"
    location: "garden"

Current Behavior

Regardless of how they are vertically aligned, they the whitespace is stripped.

tree:
    fruit: "pear"
    name: "peartree"
    location: "garden"

Steps to Reproduce

1. Write any YAML file and align the values vertically using spaces
2. Format the file using this plugin's formatter
3. Alignment is broken

Environment

• Linux

No source file or test is named in the issue. Reproduce the behavior with the provided YAML example, then locate the plugin's formatter entry point and add coverage showing that vertical value alignment is preserved or added when formatting completes.