Fix capturing unwanted pseudo selectors like :hover, :focus, etc

Author: canvasplay

src/parse-engines/common/css-class-extractor.ts

@@ -6,7 +6,7 @@ export default class CssClassExtractor {
      * @description Extracts class names from CSS AST
      */
     public static extract(ast: css.Stylesheet): CssClassDefinition[] {
-        const classNameRegex = /[.]([\w-\\@\\:\\/]+)/g;
+        const classNameRegex = /[.](([\w-]|\\[@:/])+)/g;
 
         const definitions: CssClassDefinition[] = [];
 
@@ -35,4 +35,4 @@ export default class CssClassExtractor {
         });
         return definitions;
     }
-}
+}