Various language and style cleanups

[nexushoratio]

Assigned bugs are getting cluttered. Defer some to this list.

• eslint: Bad use of globals #238
• Revisit pages that use the terms "section{,s}" or "card{,s}" #245
• Update all name: 'Blah', configs to use string interpolation #246
• Revisit use of Arrary.from().map() #247
• Be consistent with use of values() for collections #248
• Revisit use of Array.from().filter() #249
• Normalize the uniqueFooIdentifier() functions #251
• Replace linkedInGlobals with this.spa.details.globals #252
• Clean up tests that use RegExp for HTML #254