refactor(css_parser): Renamed 'CssSimpleFunction' to 'CssFunction'

All instances of 'CssSimpleFunction' have been replaced with 'CssFunction' across multiple files. This includes updates to function names, variable names, and type annotations.

crates/biome_css_parser/src/syntax/value/function.rs

@@ -93,14 +93,15 @@ impl ParseRecovery for ParameterListParseRecovery {
     /// - A comma ',', indicating the list separator.
     /// - The next parameter, indicating the start of a new parameter.
     /// - A closing parenthesis ')', indicating the end of a parameter list.
+    /// - A ';', indicating the end of a declaration.
     /// # Examples
     /// Basic usage in CSS:
     ///
     /// ```css
     /// transform: rotate(30deg,, /* Error in parameter, recover here */)
     /// ```
     fn is_at_recovered(&self, p: &mut Self::Parser<'_>) -> bool {
-        p.at_ts(token_set!(T![,], T![')'])) || is_at_parameter(p)
+        p.at_ts(token_set!(T![,], T![')'], T![;])) || is_at_parameter(p)
     }
 }