Enable playlist-caching for random-playlists

src/SdCard.cpp

@@ -108,9 +108,7 @@ char **SdCard_ReturnPlaylist(const char *fileName, const uint32_t _playMode) {
         }
 
         // ...and playmode has to be != random/single (as random along with caching doesn't make sense at all)
-        if (_playMode == ALL_TRACKS_OF_DIR_RANDOM ||
-            _playMode == ALL_TRACKS_OF_DIR_RANDOM_LOOP ||
-            _playMode == SINGLE_TRACK ||
+        if (_playMode == SINGLE_TRACK ||
             _playMode == SINGLE_TRACK_LOOP) {
                 readFromCacheFile = false;
         } else {

src/main.cpp

@@ -184,7 +184,7 @@ void setup() {
     Serial.println(F(" | |___   ___) | |  __/  | |_| | | | | | | | | (_) |"));
     Serial.println(F(" |_____| |____/  |_|      \\__,_| |_| |_| |_|  \\___/ "));
     Serial.println(F(" Rfid-controlled musicplayer\n"));
-    Serial.println(F(" Rev 20210709-2\n"));
+    Serial.println(F(" Rev 20210712-1\n"));
 
     // print wake-up reason
     printWakeUpReason();