style: Run rustfmt on servo/components/style and servo/ports/geckolib

This patch is generated by running `cargo +nightly fmt` under
`servo/components/style/` and `servo/ports/geckolib` against mozilla-central
https://hg.mozilla.org/mozilla-central/rev/b193f2e7a6a5d1f042c957ea4acd5c89bf210512

My nightly version is: 1.58.0-nightly (c9c4b5d72 2021-11-17)

Manually remove the redundant braces in author_styles.rs to fix a warning.

Differential Revision: https://phabricator.services.mozilla.com/D131556

components/style/values/mod.rs

@@ -547,9 +547,7 @@ impl Parse for TimelineOrKeyframesName {
                 s,
                 &["none"],
             )?)),
-            Token::QuotedString(ref s) => {
-                Ok(Self::QuotedString(Atom::from(s.as_ref())))
-            },
+            Token::QuotedString(ref s) => Ok(Self::QuotedString(Atom::from(s.as_ref()))),
             ref t => Err(location.new_unexpected_token_error(t.clone())),
         }
     }