🎨 Flatten manage_media code

Marlin/src/sd/cardreader.cpp

@@ -476,11 +476,15 @@ void CardReader::manage_media() {
   uint8_t stat = uint8_t(IS_SD_INSERTED());
   if (stat == prev_stat) return;
 
-  DEBUG_ECHOLNPGM("SD: Status changed from ", prev_stat, " to ", stat);
+  DEBUG_SECTION(mm, "CardReader::manage_media", true);
+  DEBUG_ECHOLNPGM("SD Status ", prev_stat, " -> ", stat);
 
   flag.workDirIsRoot = true;        // Return to root on mount/release
 
-  if (ui.detected()) {
+  if (!ui.detected()) {
+    DEBUG_ECHOLNPGM("SD: No UI Detected.");
+    return;
+  }
 
   uint8_t old_stat = prev_stat;
   prev_stat = stat;                 // Change now to prevent re-entry
@@ -502,21 +506,20 @@ void CardReader::manage_media() {
 
   ui.media_changed(old_stat, stat); // Update the UI
 
-    if (stat) {
+  if (!stat) return;                // Exit if no media is present
+
   TERN_(SDCARD_EEPROM_EMULATION, settings.first_load());
-      if (old_stat == 2) {            // First mount?
+
+  if (old_stat != 2) return;        // First mount?
+
   DEBUG_ECHOLNPGM("First mount.");
+
   #if ENABLED(POWER_LOSS_RECOVERY)
     recovery.check();               // Check for PLR file. (If not there then call autofile_begin)
   #elif DISABLED(NO_SD_AUTOSTART)
     autofile_begin();               // Look for auto0.g on the next loop
   #endif
 }
-    }
-  }
-  else
-    DEBUG_ECHOLNPGM("SD: No UI Detected.");
-}
 
 /**
  * "Release" the media by clearing the 'mounted' flag.