updates format style

data/style.css

   font-family: sans-serif, Arial, Helvetica;
   background-color: #d4d4d4;
   height: 100%;
-  /* background-image: url('Background.png'); */
   background-repeat: repeat;
   background-size: 150% 150%;
 }

lib/httpserver/filesys.cpp

   } else {
     Serial.println("Delete failed");
   }
-}
-
-
-
- 
+}

lib/httpserver/filesys.h

 #include <LittleFS.h>
 
 // some usefull wrappers for Filesystem
-
 bool mount_fs();
 bool format_fs();
 

lib/treppe/treppe.cpp

     current_pwm += differenz_pwm_pro_tick;
   else
     current_pwm -= differenz_pwm_pro_tick;
+  Serial.printf("dimm_stufe %d %f\n", stufe, current_pwm);
   pwmController.setChannelPWM(stufe, static_cast<uint16_t>(current_pwm));
 
   current_tick++;

lib/treppe/treppe.h

 private:
     const uint8_t stufen;
     uint16_t time_per_stair = 300;  // dimmtime per stair [ms]
-    uint16_t idle_brightness = 100;
+    uint16_t idle_brightness = 400;
     uint16_t active_brightness = 700;
 
     uint16_t ldr_schwelle = 7;      // activation value for FSM [lx]