Enable columns with spaces for into_sqlite by adding quotes to column names (#12759)

# Description
Spaces were causing an issue with into_sqlite when they appeared in
column names.

This is because the column names were not properly wrapped with
backticks that allow sqlite to properly interpret the column.

The issue has been addressed by adding backticks to the column names of
into sqlite. The output of the column names when using open is
unchanged, and the column names appear without backticks as expected.

fixes #12700 

# User-Facing Changes
N/A

# Tests + Formatting
Formatting has been respected.

Repro steps from the issue have been done, and ran multiple times. New
values get added to the correct columns as expected.

crates/nu-command/src/database/commands/into_sqlite.rs

@@ -269,7 +269,8 @@ fn insert_in_transaction(
         let insert_statement = format!(
             "INSERT INTO [{}] ({}) VALUES ({})",
             table_name,
-            Itertools::intersperse(val.columns().map(String::as_str), ", ").collect::<String>(),
+            Itertools::intersperse(val.columns().map(|c| format!("`{}`", c)), ", ".to_string())
+                .collect::<String>(),
             Itertools::intersperse(itertools::repeat_n("?", val.len()), ", ").collect::<String>(),
         );
 
@@ -390,8 +391,12 @@ fn get_columns_with_sqlite_types(
     let mut columns: Vec<(String, &'static str)> = vec![];
 
     for (c, v) in record {
-        if !columns.iter().any(|(name, _)| name == c) {
-            columns.push((c.clone(), nu_value_to_sqlite_type(v)?));
+        if !columns
+            .iter()
+            .map(|name| (format!("`{}`", name.0), name.1))
+            .any(|(name, _)| name == *c)
+        {
+            columns.push((format!("`{}`", c), nu_value_to_sqlite_type(v)?));
         }
     }