Node 18 and eslint 8 fixes

[chappjc]

This resolves a build error I encountered with Node 18, but is apparently related to the version of eslint-config-standard we were using that was not quite compatible with eslint 8.

standard/eslint-config-standard#202
standard/eslint-config-standard#209

This updates the npm deps to resolves that.

This also gets CI running on Node.js 16 and 18, which are the LTS and "Current" version supported: https://nodejs.org/en/download/

 dompurify                    ^2.3.5  →    ^2.3.8     
 url-parse                    ^1.5.4  →   ^1.5.10     
 @babel/core                ^7.16.12  →  ^7.17.10     
 @babel/eslint-parser        ^7.16.5  →   ^7.17.0     
 @babel/preset-env          ^7.16.11  →  ^7.17.10     
 babel-loader                 ^8.2.3  →    ^8.2.5     
 css-loader                   ^6.5.1  →    ^6.7.1     
 eslint                       ^8.7.0  →   ^8.15.0     
 eslint-config-standard      ^16.0.3  →   ^17.0.0     
 eslint-plugin-import        ^2.25.4  →   ^2.26.0     
 mini-css-extract-plugin      ^2.5.3  →    ^2.6.0     
 sass                        ^1.49.0  →   ^1.51.0     
 sass-loader                 ^12.4.0  →   ^12.6.0     
 stylelint                   ^14.3.0  →   ^14.8.2     
 stylelint-config-standard   ^24.0.0  →   ^25.0.0     
 stylelint-webpack-plugin     ^3.1.1  →    ^3.2.0     
 webpack                     ^5.67.0  →   ^5.72.1 

EDIT: since updated with the additional updates that support for node.js <14.15

Resolution for:

$ npm ci
npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR! 
npm ERR! While resolving: eslint-config-standard@16.0.3
npm ERR! Found: eslint@8.7.0
npm ERR! node_modules/eslint
npm ERR!   dev eslint@"^8.7.0" from the root project
npm ERR!   peer eslint@"^7.5.0 || ^8.0.0" from @babel/eslint-parser@7.16.5
npm ERR!   node_modules/@babel/eslint-parser
npm ERR!     dev @babel/eslint-parser@"^7.16.5" from the root project
npm ERR!   6 more (eslint-plugin-es, eslint-plugin-import, ...)
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer eslint@"^7.12.1" from eslint-config-standard@16.0.3
npm ERR! node_modules/eslint-config-standard
npm ERR!   dev eslint-config-standard@"^16.0.3" from the root project
npm ERR! 
npm ERR! Conflicting peer dependency: eslint@7.32.0
npm ERR! node_modules/eslint
npm ERR!   peer eslint@"^7.12.1" from eslint-config-standard@16.0.3
npm ERR!   node_modules/eslint-config-standard
npm ERR!     dev eslint-config-standard@"^16.0.3" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.