convert SyntaxShape::Table into the corresponding Type (#7781)

# Description

Small fix. Related: #7699.

# User-Facing Changes

# Tests + Formatting

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# After Submitting

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crates/nu-protocol/src/syntax_shape.rs

@@ -148,7 +148,7 @@ impl SyntaxShape {
             SyntaxShape::Boolean => Type::Bool,
             SyntaxShape::Signature => Type::Signature,
             SyntaxShape::String => Type::String,
-            SyntaxShape::Table => Type::List(Box::new(Type::Any)), // FIXME:  What role should columns play in the Table type?
+            SyntaxShape::Table => Type::Table(vec![]), // FIXME:  What role should columns play in the Table type?
             SyntaxShape::VarWithOptType => Type::Any,
             SyntaxShape::Variable => Type::Any,
         }