fix: apply warning fixes

app/src/main/java/ru/sweetbread/unn/API.kt

@@ -214,10 +214,9 @@ suspend fun getScheduleDay(
     if ((type == ME.type) and (id == ME.unnId!!)) {
         val schedule = withContext(Dispatchers.IO) { loadSchedule(date) }
         Log.d("Schedule", schedule.joinToString())
-        if (schedule.size != 0) {
+        if (schedule.isNotEmpty())
             return schedule
     }
-    }
 
     return getSchedule(type, id, date, date)
 }

app/src/main/java/ru/sweetbread/unn/db/Schedule.kt

@@ -376,7 +376,7 @@ fun loadSchedule(oid: Int): ScheduleUnit? {
 
 fun loadSchedule(date: LocalDate): ArrayList<ScheduleUnit> {
     db.scheduleDao().getSchedule(date.format(DateTimeFormatter.ISO_DATE))
-        .mapNotNull { Log.d("meow", "${it.oid}: ${loadSchedule(it.oid)}") }
+        .map { Log.d("meow", "${it.oid}: ${loadSchedule(it.oid)}") }
     return ArrayList(
         db.scheduleDao().getSchedule(date.format(DateTimeFormatter.ISO_DATE))
             .mapNotNull { loadSchedule(it.oid) }