fixed bug in Planning displayed multiple times (not cleared in-between)

app/src/main/java/fr/forum_thalie/tsumugi/planning/Planning.kt

             if (result.has("planning"))
             {
                 val programList = result.getJSONArray("planning")
+                programmes.clear()
                 for (i in 0 until programList.length())
                 {
                     val item = programList[i] as JSONObject

app/src/main/java/fr/forum_thalie/tsumugi/ui/programme/ProgrammeDayFragment.kt

         viewModel.day = arguments?.getString("day") ?: ""
 
         val root = inflater.inflate(R.layout.fragment_programme_day, container, false)
+
         Planning.instance.programmes.forEach {
             if (it.isThisDay(day = weekdays.indexOf(viewModel.day)))
                 programmeOfTheDay.add(it)
         }
         viewManager = LinearLayoutManager(context)
-        viewAdapter =
-            ProgrammeAdapter(programmeOfTheDay, viewModel.day)
+        viewAdapter = ProgrammeAdapter(programmeOfTheDay, viewModel.day)
         recyclerView = root.findViewById<RecyclerView>(R.id.programme_recycler).apply {
             // use this setting to improve performance if you know that changes
             // in content do not change the layout size of the RecyclerView