Update Standard@9.0.0

[cezaraugusto]

Version 9.0.0 introduced major changes that changed lint rules for several files.

This work will be split to avoid regressions. From Standard changelog those rules were added:

(note that changed rules described in Standard changelog didn't affect our repo)

• Disallow mixing different operators without parens (no-mixed-operators) (see Update to Standard@9.0.0 - rule "no-mixed-operators" #7784)
• Enforce 1 newline at end of file (previously 1 or 2 were ok) (no-multiple-empty-lines) (see Update lint style for Standard@9.0.0 - first patch #7495)
• - Disallow Unused Expressions (no-unused-expressions)
• Disallow redundant return statements (no-useless-return) (see Update lint style for Standard@9.0.0 - first patch #7495)
• Disallow Incorrect Early Use (no-use-before-define) not applicable
• - Enforce that Promise rejections are passed an Error object as a reason (prefer-promise-reject-errors)
• - Enforce comparing typeof expressions against string literals (valid-typeof)
• Enforce spacing around * in generator functions (generator-star-spacing) (see Update lint style for Standard@9.0.0 - first patch #7495)
• Disallow Unnecessary Labels (no-extra-label) not applicable
• Disallow spacing between template tags and their literals (template-tag-spacing) not applicable
• Disallow padding within switch statements and classes (padded-blocks) (see Update lint style for Standard@9.0.0 - first patch #7495)
• Enforce that Symbols are passed a description (symbol-description) not applicable

This issue addresses rules marked as checked.