Migrate Glance sample into main branch

- Rebase with Glance branch
- Remove glance module
- Include List sample with theming

Author: marcelpinto

AppWidget/app/src/main/AndroidManifest.xml

@@ -53,7 +53,7 @@
 
             <meta-data
                 android:name="android.appwidget.provider"
-                android:resource="@xml/app_widget_info_checkbox_list" />
+                android:resource="@xml/app_widget_list_rv" />
         </receiver>
 
         <receiver
@@ -79,6 +79,19 @@
                 android:name="android.appwidget.provider"
                 android:resource="@xml/app_widget_weather_forecast" />
         </receiver>
+
+        <receiver
+            android:name=".glance.list.ListGlanceWidgetReceiver"
+            android:enabled="@bool/glance_appwidget_available"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/app_widget_list_glance" />
+        </receiver>
     </application>
 
 </manifest>

AppWidget/glance-widget/src/main/java/com/example/android/glancewidget/GlanceWidgetHelpers.kt renamed to AppWidget/app/src/main/java/com/example/android/appwidget/glance/GlanceKtx.kt

@@ -14,7 +14,8 @@
  * limitations under the License.
  */
 
-package com.example.android.glancewidget
+package com.example.android.appwidget.glance
+
 
 import android.os.Build
 import androidx.compose.runtime.Composable
@@ -23,10 +24,11 @@ import androidx.glance.GlanceModifier
 import androidx.glance.appwidget.cornerRadius
 
 @Composable
-fun GlanceModifier.appWidgetBackgroundRadius(): GlanceModifier {
-    return if (Build.VERSION.SDK_INT >= 31) {
-        this.cornerRadius(android.R.dimen.system_app_widget_background_radius)
+fun GlanceModifier.appWidgetBackgroundCornerRadius(): GlanceModifier {
+    if (Build.VERSION.SDK_INT >= 31) {
+        cornerRadius(android.R.dimen.system_app_widget_background_radius)
     } else {
-        this.cornerRadius(16.dp)
+        cornerRadius(16.dp)
     }
-}
+    return this
+}