Make sentence parser works for spaced languages

[khaitruong922]

Since all terms are trimmed after processed by the parser and the option Show space between parsed words only adds a right margin instead of a space, all words are clumped together so whole word scan will not work.

Although it's not recommended to use sentence parser for spaced languages, some users may have this on. I've fixed to make this at least work by adding a space between the terms. The option Show space between parsed words will be hidden and default to true for spaced languages. The only use case that I find marginally useful is that it makes recognizing terms with more than 1 words easier.

For example, we can see that all terms are widely spaced by space character + margin, so come back is easily recognized as a term.

If this is not worth it, then we can consider disable the parser and hide the settings for spaced languages.

[github-actions]

Playwright test results

 4 passed
 1 flaky

Details

 5 tests across 4 suites
 2 minutes, 38 seconds
 3c3f858

Flaky tests

chromium › integration.spec.js › anki add