Add File System in settings and disable peek if not expandeed

index.htm and index.js and peek.js:
- add expand and peek function for peek expand to removeEventListener if not expanded

- add peekexp and segvexp in settings to save status (wip)

- add File System in settings

wled00/data/settings.htm

@@ -42,7 +42,7 @@
 				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>`;
+							urows += `<button type="submit" onclick="window.location=\'./settings/um?um=${k}\'">${k} (UM ☾)</button>`;
 					}
 				}
 				gId("configMenu").innerHTML = urows;
@@ -104,5 +104,6 @@
 <button type="submit" onclick="window.location='./settings/sync'">Sync Interfaces</button>
 <button type="submit" onclick="window.location='./settings/time'">Time & Macros</button>
 <button type="submit" onclick="window.location='./settings/sec'">Security & Updates</button>
+<button type="submit" onclick="window.location='./edit'">File System ☾</button> <!--WLEDMMalways expa-->
 </body>
 </html>