Usermod config level up, step 2: Working!

- remove settings_um2
- remove addToConfigMenu
- settings.htm: add isO and ldS (inspired by settings_um.htm): add usermod buttons to urows
settings_um.htm: check url um var and if set show only this usermod. Only show globalGPIOs if no usermod

wled00/data/settings.htm

@@ -26,6 +26,34 @@
 				alert("Loading of configuration script failed.\nIncomplete page data!");
 			});
 		}
+		function isO(i) { return (i && typeof i === 'object' && !Array.isArray(i)); }
+		// load settings and insert values into DOM
+		function ldS() {
+			var url = (loc?`http://${locip}`:'') + '/cfg.json';
+			fetch(url, {
+				method: 'get'
+			})
+			.then(res => {
+				if (!res.ok) gId('lserr').style.display = "inline";
+				return res.json();
+			})
+			.then(json => {
+				umCfg = json.um;
+				urows="";
+				if (isO(umCfg)) {
+					for (const [k,o] of Object.entries(umCfg)) {
+							urows += `<button type="submit" onclick="window.location=\'./settings/um?um=${k}\'">${k} (UM)</button>`;
+					}
+				}
+				gId("configMenu").innerHTML = urows;
+				var url = (loc?`http://${locip}`:'') + '/settings/s.js?p=0';
+				loadJS(url, false);	// If we set async false, file is loaded and executed, then next statement is processed
+			})
+			.catch((error)=>{
+				gId('lserr').style.display = "inline";
+				console.log(error);
+			});
+		}
 		function S(){
 			if (window.location.protocol == "file:") {
 				loc = true;
@@ -35,10 +63,8 @@
 					localStorage.setItem('locIp', locip);
 				}
 			}
-			var url = (loc?`http://${locip}`:'') + '/settings/s.js?p=0';
-			loadJS(url, false);	// If we set async false, file is loaded and executed, then next statement is processed
-			gId("configMenu").innerHTML = '<button type="submit" onclick="window.location=\'./settings/ar?um=1\'">Audio Reactive (UM)</button>\
-								<button type="submit" onclick="window.location=\'./settings/ar?um=2\'">Weather mod (UM)</button>';
+			//WLEDSR: add ldS and move loadJS there (like in settings_um)
+			ldS();
 		}
 	</script>
 	<style>