Use double quotes in queries and don't quote the field name individually

[zjosua]

Fixes #137

Description

I don't know if it's intentended that quoting the field name idividually doesn't work anymore.
But quoting the whole string used to work before .24 as well, so there's probably nothing wrong with doing that.

Checklist:

• I've read and understood the contribution guidelines
• I've tested my changes against at least one of the following Anki builds:
  • Latest standard Anki 2.1 binary build [required for Anki-compatible 2.1 add-ons]
  • Latest alternative Anki 2.1 binary build
  • Latest Anki 2.0 binary build [required for Anki 2.0-compatible add-ons]
  • Anki 2.1.24 (e29d380d) running from source
• I've tested my changes on at least one of the following platforms:
  • Linux, version: Debian bullseye
  • Windows, version:
  • macOS, version:
• My changes potentially affect non-desktop platforms, of which I've tested:
  • AnkiMobile, version:
  • AnkiDroid, version:
  • AnkiWeb

[glutanimate]

Thank you!