chore: improve interop between prettier and eslint

[delatrie]

• Set quoteProps to "consistent" to match ESLint's quote-props rule.
• Set avoidEscape to true for ESLint's @stylistic/quotes rule to match Prettier's formatting behavior when dealing with strings with double quote characters inside (e.g., '"foo"="bar"').

Other changes:

• Set ignoreRestSiblings to true for ESLint's @typescript-eslint/no-unused-vars rule to prevent false positives in situations like this:

  const { foo, ...rest } = obj; // foo is unused

  We used to put the eslint-disable comments in such cases earlier because removing foo would affect the behavior.
• Some unneeded eslint-disable comments were removed or loosened.
• Swap the eslint-config-preact and ../../.eslintrc.cjs extend entries in the ESLint config of web-awesome to prioritize the project settings over the ones in the preact preset. Otherwise, the plain no-unused-vars rule would be used instead of the TypeScript version. Some other rules like @stylistic/quotes would also be misconfigured with regard to the project scope.