feat: Add Hide app icon patch

Author: ILoveOpenSourceApplications

patches/api/patches.api

@@ -1,3 +1,7 @@
+public final class HideAppIconKt {
+	public static final fun getHideAppIconPatch ()Lapp/revanced/patcher/patch/ResourcePatch;
+}
+
 public final class app/revanced/patches/all/misc/activity/exportall/ExportAllActivitiesPatchKt {
 	public static final fun getExportAllActivitiesPatch ()Lapp/revanced/patcher/patch/ResourcePatch;
 }

patches/src/main/kotlin/app/revanced/patches/all/misc/appicon/HideAppIconPatch.kt

@@ -0,0 +1,54 @@
+package app.revanced.patches.all.misc.appicon
+
+import app.revanced.patcher.patch.resourcePatch
+import org.w3c.dom.Element
+import java.util.logging.Level
+import java.util.logging.Logger
+
+private const val ANDROID_NS = "http://schemas.android.com/apk/res/android"
+
+@Suppress("unused")
+val hideAppIconPatch = resourcePatch(
+    name = "Hide app icon",
+    description = "Hides the app icon from the launcher by changing the intent filter category.",
+    use = false,
+) {
+    execute {
+        document("AndroidManifest.xml").use { document ->
+            val logger = Logger.getLogger("hideAppIconPatch")
+
+            try {
+                val categoryNodes = document.getElementsByTagName("category")
+                if (categoryNodes.length == 0) {
+                    logger.warning("No <category> elements found in AndroidManifest.xml. Skipping modification.")
+                    return@execute
+                }
+
+                val validCategoryNodes = (0 until categoryNodes.length)
+                    .mapNotNull { categoryNodes.item(it) as? Element }
+                    .filter { (it.parentNode as? Element)?.nodeName == "intent-filter" }
+
+                if (validCategoryNodes.isEmpty()) {
+                    logger.warning("No valid 'android.intent.category.LAUNCHER' found in intent-filter blocks. Skipping modification.")
+                    return@execute
+                }
+
+                var modified = false
+                for (category in validCategoryNodes) {
+                    val categoryName = category.getAttributeNS(ANDROID_NS, "name")
+
+                    if (category.hasAttributeNS(ANDROID_NS, "name") && categoryName == "android.intent.category.LAUNCHER") {
+                        category.setAttributeNS(ANDROID_NS, "name", "android.intent.category.DEFAULT")
+                        modified = true
+                    }
+                }
+
+                if (!modified) {
+                    logger.warning("No 'android.intent.category.LAUNCHER' found or already set to DEFAULT—no modifications made.")
+                }
+            } catch (e: Exception) {
+                logger.log(Level.SEVERE, "Error while modifying AndroidManifest.xml", e)
+            }
+        }
+    }
+}