Issue found on page 'Loading JSON'

I was importing large JSON objects with many fields and duckdb refused to expand each field into its own column and instead give me a single `STRUCT...` or `MAP(VARCHAR, VARCHAR)` column. When messing around with the parameters I stumbled across this list of available arguments:

```
D SELECT * FROM read_json('./test-flat.json', format='array', auto_detectt=true) LIMIT 1;
Binder Error: Invalid named parameter "auto_detectt" for function read_json
Candidates:
map_inference_threshold BIGINT
records VARCHAR
timestampformat VARCHAR
field_appearance_threshold DOUBLE
date_format VARCHAR
dateformat VARCHAR
sample_size BIGINT
columns ANY
convert_strings_to_integers BOOLEAN
format VARCHAR
ignore_errors BOOLEAN
maximum_object_size UINTEGER
maximum_depth BIGINT
auto_detect BOOLEAN
union_by_name BOOLEAN
maximum_sample_files BIGINT
compression VARCHAR
timestamp_format VARCHAR
hive_types ANY
hive_partitioning BOOLEAN
hive_types_autocast BOOLEAN
filename ANY
```

It seems like not all of them are documented, the one I needed in my case was `map_inference_threshold` which apparently has a default which is too low for my objects, after setting it to `-1` the columns got generated. [Searching via GitHub](https://github.com/search?q=repo%3Aduckdb%2Fduckdb-web%20map_inference_threshold&type=code) also yields no results.

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