Compilation: add `--function-body` to expression compilation

Motivation and Context

In !2805 (merged) we are deprecating -v and compile view. This MR introduces an alternative to compile view by means of passing --function-body to compile expression.

Related Issue(s): #2009 (closed)

Description

When --function-body is passed, two special things will happen:

• There's no running of the expression (as we do not have the argument of the function), so it enforces --without-run.
• Function is automatically curried.

Component

• compiler
• website
• webide
• vscode-plugin
• debugger

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Performance improvement (non-breaking change that improves performance)
• None (change with no changelog)

Changelog

Checklist:

• If a new syntax has been introduced, put a message on slack ligo-lsp
• Changes follow the existing coding style (use dune @fmt to check).
• Tests for the changes have been added (for bug fixes / feature).
• Documentation has been updated.
• Changelog description has been added (if appropriate).
• Start titles under ## Changelog section with #### (if appropriate).
• There is no image or uploaded file in changelog
• Examples in changed behaviour have been added to the changelog (for breaking change / feature).