feat: Provide better Boolean help messages

[claremacrae]

Description

Provide meaningful information to help users trouble-shoot any problems with Boolean filters.

Note: more improvements are coming so I am not updating the documentation yet.

(This replaces #2760 which was created before I pushed some changes to main)

Motivation and Context

Try to provide a 'help' message rather than 'error' message.

Based on: https://twitter.com/travis_simon/status/1069074730211135488

How has this been tested?

• Automated tests
• Exploratory testing

Screenshots (if appropriate)

Before:

malformed boolean query -- Unexpected character: " (check the documentation for guidelines)

After:

Could not interpret the following instruction as a Boolean combination:  
    (description includes "hello world") OR (description includes "42")  
  
The error message is:  
    malformed boolean query -- Unexpected character: " (check the documentation for guidelines)  
  
The instruction was converted to the following simplified line:  
    (f1") OR (f2")  
  
Where the sub-expressions in the simplified line are:  
    'f1': 'description includes "hello world'  
    'f2': 'description includes "42'  
  
For help, see:  
    https://publish.obsidian.md/tasks/Queries/Combining+Filters

Types of changes

Changes visible to users:

• New feature (prefix: feat - non-breaking change which adds functionality)
• Documentation (prefix: docs - improvements to any documentation content for users)

Internal changes:

• Tests (prefix: test - additions and improvements to unit tests and the smoke tests)

Checklist

• My code follows the code style of this project and passes yarn run lint.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
  • Will be done later
• My change has adequate Unit Test coverage.

Terms

• My contribution follow this project's contributing guide
• I agree to follow this project's Code of Conduct