docs: clarify case insensitive dictionary hosting (#32222)

You must either (1) have a case-insensitive file server (2) upload files in both casings. This improves the docs to clarify that.

[0]: https://github.com/electron/electron/issues/22482#issuecomment-593617375
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Evan Hahn 2022-01-10 04:07:46 -06:00 committed by GitHub
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@ -903,8 +903,10 @@ setting with the current OS locale. This setting is persisted across restarts.
By default Electron will download hunspell dictionaries from the Chromium CDN. If you want to override this
behavior you can use this API to point the dictionary downloader at your own hosted version of the hunspell
dictionaries. We publish a `hunspell_dictionaries.zip` file with each release which contains the files you need
to host here, the file server must be **case insensitive** you must upload each file twice, once with the case it
has in the ZIP file and once with the filename as all lower case.
to host here.
The file server must be **case insensitive**. If you cannot do this, you must upload each file twice: once with
the case it has in the ZIP file and once with the filename as all lowercase.
If the files present in `hunspell_dictionaries.zip` are available at `https://example.com/dictionaries/language-code.bdic`
then you should call this api with `ses.setSpellCheckerDictionaryDownloadURL('https://example.com/dictionaries/')`. Please