Support tablet PCMode, Peek -> GFX

index.css: remove #Colors (br instead), PCmode when size < 798

index.html: Change Peek to GFX, add div colorGFX, effectGFX, segGFX

index.js: 
- remove peekexp, segvexp, 
- add colorGFX, effectGFX, segGFX controls, 
- remove expandV/eandp
- improve segment view gfx
- refactor toggleLiveView
- togglePcMode: support smaller (tablet) screens

wled00/data/index.css

@@ -738,10 +738,10 @@ input[type=range]::-moz-range-thumb {
 	margin: 4px 0 0;
 }
 
-#Colors {
+/* #Colors {
 	padding-top: 18px;
 }
-
+ */
 /* Dynamically hide brightness slider label */
 .hd {
 	display: var(--bhd);
@@ -1517,7 +1517,7 @@ TD .checkmark, TD .radiomark {
 	}
 }
 
-@media all and (max-width: 1249px) {
+@media all and (max-width: 798px) {
 	#buttonPcm {
 		display: none;
 	}