…ing.prototype.length` (#5704)* fix: counts graphemes instead of String length* Update packages/eslint-plugin/src/rules/ban-ts-comment.tsCo-authored-by: Josh Goldberg <git@joshuakgoldberg.com>* chore: add valid tests* Add grapheme-splitter to peerDependencies* Move to standard dependency* No more peerDependencyCo-authored-by: Josh Goldberg <git@joshuakgoldberg.com>Co-authored-by: Josh Goldberg <me@joshuakgoldberg.com>

… type declarations (#6211)* 🚧 key-spacing for interface on default settings* 🚧 Support type literals as welll* 🚧 Add full typing for the options* 🚧 Add 'mode' param* 🐛 Fix index signatures* ✨ Support classes* 🩹 fixes* ✅ Add tests on mode, multiLine, singleLine* 🏷️ Allow options.multiline.align to be an object* 🎨 Use ast utils to locate last character before token* ✨ Support comments in-between properties* ✅ Add test cases for nested type declarations & multiline type annotations* ✨ Autofix for non-aligned values* ✨ Autofix for aligned values* ✏️* 🚨* 🐛 Support optional ? token* ✅ Add tests with class property assignments* 📝 Add documentation on key-spacing* 🎨 Use .at() to access last element of array* ✅ Fix tests* fixup! ✅ Fix tests* ✅ Add some coverage* 🐛 Fix edge case in determining aligned groupsIn case there is three statements in one line, and one statement in the line after* ⚡️ Use Array.concat instead of .push(...).push could error if 60k + arguments* 🎨 Improve readability* 🎨 Use tempate literals in tests* ✅ Add test with anonymous types* ✅ Add test with quoted keys* ➕ Add grapheme-splitter to deal with emojis* ✅ Add test case for multiline comments* 🚨 Remove 'in' statements, reduce amount of null-assertions* ✅ Add test case for properties without type annotation or assignments* ✅ Add wacky test cases* ✅ Add coverage* ✅ Add coverage, again* ✅ Add coverage, again* ✅ Add coverage when align is an object, but align.on is missingIt defaults to 'colon' in this case* KeyTypeNodeWithTypeAnnotation* Extract to shared helperCo-authored-by: Josh Goldberg <git@joshuakgoldberg.com>

closes:#6354

#5919)* fix(eslint-plugin): [prefer-optional-chain] fixer produces wrong logic (#1438)* Update packages/eslint-plugin/src/rules/prefer-optional-chain.ts* fix(eslint-plugin): [prefer-optional-chain] fix tests* fix(eslint-plugin): [prefer-optional-chain] fix testsCo-authored-by: Josh Goldberg <git@joshuakgoldberg.com>Co-authored-by: Святослав Зайцев <sz@agentapp.ru>

…d link (#6223)

…6321)

* docs: describe update steps for ESLint, Node, and TypeScript* lil typo fix, and a heart* Finalize VERSIONING/Versioning.md rename

* chore(website): reorganized sidebar and header nav a bit* Fix Formatting.md link case

#6391)Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

…`PrivateIdentifier` errors (#6028)