[Feature Request]: Add option to export table in landscape & set default value paginate to be true

### Feature description

1) Add a toggle for exporting table as landscape:

[rtables::export_as_pdf](https://github.com/insightsengineering/teal.widgets/blob/main/R/table_with_settings.R#L228) (and presumably other table exporting functions) has a landscape argument which it would be great to expose

2) Set default value of paginate to be true [here](https://github.com/insightsengineering/teal.widgets/blob/main/R/table_with_settings.R#L145) - if you have a table which fits on one page of a pdf it doesn't matter what value you set for paginate and if you have a multi-page table if you don't set paginate to be true then only the first page is output

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