feat(PatchHelper): enhance RegExp & quote syntax support

[bb010g]

Note

This PR is a patch stack. Do not squash these commits. This patch stack depends on:

• chore: esbuild: ^0.15.18 → ^0.23.0 #2660

For ease of authoring patches:

• PatchHelper's find now canonicalizes RegExps (e.g. /\i\.foo/)
• PatchHelper's find supports single & double quoted string syntax (while still allowing unquoted strings)
• PatchHelper's match supports RegExp syntax
• PatchHelper's match supports single & double quoted string syntax (while still allowing unquoted strings)
• PatchHelper supports RegExp syntax with flags (e.g. /foo/g)
• PatchHelper's code display shows in more situations, which helps clarify how various syntaxes are being interpreted (e.g. a find of "foo" "bar" will show as find: "\"foo\" \"bar\"", even when match is empty)