Initial support for compose multiplatform

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

shared/src/androidMain/AndroidManifest.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ SPDX-FileCopyrightText: 2026 NewPipe e.V. <https://newpipe-ev.de>
+  ~ SPDX-License-Identifier: GPL-3.0-or-later
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+        <activity
+            android:name="net.newpipe.app.ComposeActivity"
+            android:exported="false"
+            android:windowSoftInputMode="adjustResize" />
+    </application>
+</manifest>

shared/src/androidMain/kotlin/net/newpipe/app/ComposeActivity.kt

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+/*
+ * SPDX-FileCopyrightText: 2026 NewPipe e.V. <https://newpipe-ev.de>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package net.newpipe.app
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+
+/**
+ * Entry point for compose-related UI components on Android
+ */
+class ComposeActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        enableEdgeToEdge()
+        super.onCreate(savedInstanceState)
+
+        setContent {
+            App()
+        }
+    }
+}