Fixed filtering behaviour, since it wouldn't recognise items with two preferences if only one had been selected; added icons for preferences

app/src/main/java/com/denizk0461/studip/data/Misc.kt

@@ -1,6 +1,6 @@
 package com.denizk0461.studip.data
 
-import com.denizk0461.studip.model.StudIPEvent
+import com.denizk0461.studip.R
 
 object Misc {
 
@@ -52,6 +52,20 @@ object Misc {
         "21:45" to 7,
     )
 
+    val indexToDrawable: Map<Int, Int> = mapOf(
+        0 to R.drawable.handshake,
+        1 to R.drawable.fish,
+        2 to R.drawable.chicken,
+        3 to R.drawable.sheep,
+        4 to R.drawable.yoga,
+        5 to R.drawable.cow,
+        6 to R.drawable.pig,
+        7 to R.drawable.leaf,
+        8 to R.drawable.carrot,
+        9 to R.drawable.deer,
+        10 to R.drawable.circle,
+    )
+
     fun parseTimeslot(time: String): Pair<Int, Int> {
         val splitTime = time.split(" - ")
         val start = timeslotStartMap[splitTime[0]] ?: 0