Create login module

app/src/main/java/io/element/android/x/MainActivity.kt

@@ -1,43 +1,16 @@
 package io.element.android.x
 
+import android.content.Intent
 import android.os.Bundle
 import androidx.activity.ComponentActivity
-import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
-import io.element.android.x.ui.theme.ElementXTheme
+import io.element.android.x.ui.screen.login.LoginActivity
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContent {
-            ElementXTheme {
-                // A surface container using the 'background' color from the theme
-                Surface(
-                    modifier = Modifier.fillMaxSize(),
-                    color = MaterialTheme.colorScheme.background
-                ) {
-                    Greeting("Android")
-                }
-            }
-        }
+        // Just start the LoginActivity for now.
+        // TODO if a session exist, start the room list
+        startActivity(Intent(this, LoginActivity::class.java))
+        finish()
     }
 }
-
-@Composable
-fun Greeting(name: String) {
-    Text(text = "Hello $name!")
-}
-
-@Preview(showBackground = true)
-@Composable
-fun DefaultPreview() {
-    ElementXTheme {
-        Greeting("Android")
-    }
-}