Enable declaration-block-no-redundant-longhand-properties (#30950)

Enable
[`declaration-block-no-redundant-longhand-properties`](https://stylelint.io/user-guide/rules/declaration-block-no-redundant-longhand-properties/)
and autofix issues. The exclusions are because I find these two
shorthands to be harder to read.

stylelint.config.js

@@ -141,7 +141,7 @@ export default {
     'custom-property-pattern': null,
     'declaration-block-no-duplicate-custom-properties': true,
     'declaration-block-no-duplicate-properties': [true, {ignore: ['consecutive-duplicates-with-different-values']}],
-    'declaration-block-no-redundant-longhand-properties': null,
+    'declaration-block-no-redundant-longhand-properties': [true, {ignoreShorthands: ['flex-flow', 'overflow']}],
     'declaration-block-no-shorthand-property-overrides': null,
     'declaration-block-single-line-max-declarations': null,
     'declaration-empty-line-before': null,