Minor: Make some variables available through UI, Show error when no token + Maintenance items

[GormFrank]

Maintenance items include:

• Improve caching of window variable that are used multiple times in the script, such as: window.location, then window.location.pathname
• Show "No result" message when searching with no query term
• "numberOfPages: 9" and "automaticallyCorrectQuery: false" now configurable through parameters
• Revisit how dates are handled for output formats (need an array of months?) by using native JS functions toLocaleDateString
• Ensure no #wb-land section tag (element with semantic) is added alone/empty on the page
• Refactor/relocate some variables and function just for code readibility and efficiency
• Improve documentation of Readme and index page
• Add a new selector that will eventually allow for the replacement of the action="#wb-land" selector and potentially the gc-searchbox ID as well
• Fix a 1px glitch with QS on page load, before suggestions get inserted
• Remove "in the body of the page" dropdown option in "terms appearing" field in advanced search, which has been doing nothing different than "Anywhere in the page"
• Fix aria-activedescendant attribute accessibility concern (as part of QS)

[igkislev]

i think in the future we need to enhance showQueryErrorMessage() function to receive/print error message or at least an error code . It will allow us tracing issues and finding a root cause of the failure quickly.

[jonasg-gc]

Please fix spelling in comments: "Comma" not "coma"

[GormFrank]

Please fix spelling in comments: "Comma" not "coma"

Done!