(WIP) align platformio build env with upstream

*  espressif32@5.2.0 --> espressif32@5.3.0
* pxmagic.htm added in cdata.js
* minor updates in style.css
* align some constants and definitions (wled.h, const.h)
* npm run build

wled00/data/style.css

@@ -61,6 +61,12 @@ button.sml {
 .hide {
   display: none;
 }
+.err {
+  color: #f00;
+}
+.warn {
+  color: #fa0;
+}
 input {
   background: #333;
   color: #fff;
@@ -114,6 +120,10 @@ select {
   font-family: Verdana, sans-serif;
   border: 0.5ch solid #333;
 }
+select.pin {
+  max-width: 120px;
+  text-overflow: ellipsis;
+}
 tr {
   line-height: 100%;
 }