add CLI option to skip writing to table `network_logs`

[Rubyer77]

It takes 1.8GB for me in that case and it's not needed for many use cases.

Adding a CLI option to disable writing entirely to network_logs would be useful, if no other code downstream depends on it

 "
> SELECT
    name,
    SUM(pgsize) as total_bytes,
    COUNT(*) as page_count,
    SUM(pgsize) / 1024.0 / 1024.0 as size_mb
FROM dbstat
GROUP BY name
ORDER BY total_bytes DESC;
> "
+--------------------------------------+------------+---------+---------------+
| Field 1                              | Field 2    | Field 3 | Field 4       |
+--------------------------------------+------------+---------+---------------+
| idx_results_html                     | 8169472000 | 1994500 | 7791.015625   |
| results                              | 8149966848 | 1989738 | 7772.4140625  |
| network_logs                         | 1972015104 | 481449  | 1880.66015625 |
| cookies                              | 24616960   | 6010    | 23.4765625    |
| headers                              | 20811776   | 5081    | 19.84765625   |
| idx_headers_value                    | 18935808   | 4623    | 18.05859375   |
| idx_console_logs_value               | 8232960    | 2010    | 7.8515625     |
| console_logs                         | 7716864    | 1884    | 7.359375      |
| technologies                         | 4546560    | 1110    | 4.3359375     |
| idx_technologies_value               | 4452352    | 1087    | 4.24609375    |
| tls                                  | 3006464    | 734     | 2.8671875     |
| tls_san_lists                        | 2097152    | 512     | 2.0           |
| idx_results_title                    | 1249280    | 305     | 1.19140625    |
| idx_results_perception_hash          | 753664     | 184     | 0.71875       |
| idx_results_perception_hash_group_id | 290816     | 71      | 0.27734375    |
| sqlite_sequence                      | 4096       | 1       | 0.00390625    |
| sqlite_schema                        | 4096       | 1       | 0.00390625    |
+--------------------------------------+------------+---------+---------------+