Resolved: Add a configuration setting to disable capitalisation of option value placeholders in help output

[Mo-Sanchez]

Fixes #1614

Changes
This PR adds a configuration setting to control the capitalization of option value placeholders in help output.

• A new CapitalizeOptionValuePlaceholders setting has been added, defaulting to true for backward compatibility.
• The command parsing model and help provider have been updated to account for this new setting
• A unit test is included to verify the new behavior

Please upvote 👍 this pull request if you are interested in it.

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