fix code mirror style

Signed-off-by: zhangtianli2006 <49156174+zhangtianli2006@users.noreply.github.com>

Author: ZTL-UwU

src/assets/code_mirror/monokai.css

@@ -2,6 +2,18 @@
     color: #75715e !important;
 }
 
+.cm-s-monokai span.cm-string {
+    color: #e6db74 !important;
+}
+
+.cm-s-monokai span.cm-keyword {
+    color: #F92772 !important;
+}
+
+.cm-s-monokai span.cm-operator {
+    color: #F92772 !important;
+}
+
 .cm-s-monokai .cm-matchhighlight {
     background-color: #49483e;
 }