Construct Records only through checked helpers (#11386)

# Description

Constructing the internals of `Record` without checking the lengths is
bad. (also incompatible with changes to how we store records)

- Use `Record::from_raw_cols_vals` in dataframe code
- Use `record!` macro in dataframe test
- Use `record!` in `nu-color-config` tests
- Stop direct record construction in `nu-command`
- Refactor table construction in `from nuon`

# User-Facing Changes
None

# Tests + Formatting
No new tests, updated tests in equal fashion

crates/nu-command/src/strings/detect_columns.rs

@@ -199,7 +199,10 @@ fn detect_columns(
                         };
 
                         if !(l_idx <= r_idx && (r_idx >= 0 || l_idx < (cols.len() as isize))) {
-                            return Value::record(Record { cols, vals }, name_span);
+                            return Value::record(
+                                Record::from_raw_cols_vals(cols, vals),
+                                name_span,
+                            );
                         }
 
                         (l_idx.max(0) as usize, (r_idx as usize + 1).min(cols.len()))
@@ -210,7 +213,7 @@ fn detect_columns(
                     }
                 }
             } else {
-                return Value::record(Record { cols, vals }, name_span);
+                return Value::record(Record::from_raw_cols_vals(cols, vals), name_span);
             };
 
             // Merge Columns
@@ -232,7 +235,7 @@ fn detect_columns(
             vals.push(binding);
             last_seg.into_iter().for_each(|v| vals.push(v));
 
-            Value::record(Record { cols, vals }, name_span)
+            Value::record(Record::from_raw_cols_vals(cols, vals), name_span)
         })
         .into_pipeline_data(ctrlc))
     } else {