Add Time Machine guide and reorder sidebar items

docs/TIMEMACHINE.md

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+# Restoring from Time Machine backup
+
+OCLP automatically installs root patches when installing from the USB drive for the first time to ensure smooth operation of the first time settings. 
+
+However, as an unfortunate side effect, restoring via Time Machine breaks while root patches are installed and restoring a root patched machine requires a few tricks to avoid a kernel panic.
+
+To ensure a smooth Time Machine restore, follow the steps listed under:
+
+1. In first time settings (Setup Assistant), do not restore the backup. Instead do all settings like you would want to start fresh.
+2. Once you reach desktop, open the OCLP application and revert root patches in the Post Install Volume Patches section.
+3. Restart your Machine
+  * Note: Your Mac will feel slow due to lack of graphics drivers and resolution may be wrong. WiFi will also be unavailable in most cases, if your backup is on a network drive, use Ethernet.
+4. Login and start Migration Assistant
+5. Go through the restoring process.
+6. Once finished, go into the OCLP app and reinstall the root patches.
+
+Now you should be fully restored with Time Machine and also running with all patches.
+
+
+::: warning Sequoia Note
+
+Time Machine restoring seems to be currently broken on Sequoia even after uninstalling root patches, leading to a loop with "Migration Finished" window.
+
+Currently the only way is to restore on older OS and then upgrade to Sequoia.
+
+:::
+