fix(parser): str_join separator '' not ' ' — CSS selectors were emitting spaces between tokens

lang/el-compiler/src/parser.el

@@ -332,7 +332,7 @@ fn parse_raw_text_content(tokens: [Any], pos: Int, tag_name: String) -> Map<Stri
             }
         }
     }
-    { "text": str_join(parts, " "), "pos": p }
+    { "text": str_join(parts, ""), "pos": p }
 }
 
 // Collect tokens as text content until we hit Lt, LBrace, Eof, or a
@@ -362,7 +362,7 @@ fn parse_html_text_tokens(tokens: [Any], pos: Int) -> Map<String, Any> {
             }
         }
     }
-    { "text": str_join(parts, " "), "pos": p }
+    { "text": str_join(parts, ""), "pos": p }
 }
 
 // Parse an attribute list: (attrname | attrname="val" | attrname={expr})*