Auto generate dark mode previews and screenshots (#776)

With this change, composable previews and screenshots should be created with just:
```
@ElementPreviews
@Composable
fun MyViewPreview() {
    ElementPreview { 
        MyView()
    }
}
```

- Adds `@ElementPreviews` which is a shorthand for:
```
@Preview(name = "D")
@Preview(name = "N", uiMode = Configuration.UI_MODE_NIGHT_YES)
```
Should be used in connection with the now public `fun ElementPreview()` composable.

- Adds ElementPreviews to previewAnnotations in dangerfile
- Screenshots of night mode previews are now rendered with night mode
- Replaces `ElementPreviewLight` and `ElementThemedPreview` with `ElementPreview`
- Deprecates `ElementPreviewDark` which should be removed.
- Remaining usages of `ElementPreviewDark` are now ignored during screenshot tests

features/rageshake/api/src/main/kotlin/io/element/android/features/rageshake/api/crash/CrashDetectionView.kt

@@ -18,11 +18,11 @@ package io.element.android.features.rageshake.api.crash
 
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import io.element.android.features.rageshake.api.R
 import io.element.android.libraries.designsystem.components.dialogs.ConfirmationDialog
+import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.utils.LogCompositions
 import io.element.android.libraries.ui.strings.CommonStrings
 
@@ -66,11 +66,13 @@ fun CrashDetectionContent(
     )
 }
 
-@Preview
+@ElementPreviews
 @Composable
-internal fun CrashDetectionViewLightPreview() = ElementPreviewLight { ContentToPreview() }
+internal fun CrashDetectionViewLightPreview() {
+    ElementPreview { ContentToPreview() }
+}
 
-@Preview
+@ElementPreviews
 @Composable
 internal fun CrashDetectionViewDarkPreview() = ElementPreviewDark { ContentToPreview() }
 

features/rageshake/api/src/main/kotlin/io/element/android/features/rageshake/api/detection/RageshakeDetectionView.kt

@@ -21,15 +21,15 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalView
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import androidx.lifecycle.Lifecycle
 import io.element.android.features.rageshake.api.R
 import io.element.android.features.rageshake.api.screenshot.ImageResult
 import io.element.android.features.rageshake.api.screenshot.screenshot
 import io.element.android.libraries.androidutils.hardware.vibrate
 import io.element.android.libraries.designsystem.components.dialogs.ConfirmationDialog
+import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.utils.LogCompositions
 import io.element.android.libraries.designsystem.utils.OnLifecycleEvent
 import io.element.android.libraries.ui.strings.CommonStrings
@@ -100,11 +100,13 @@ fun RageshakeDialogContent(
     )
 }
 
-@Preview
+@ElementPreviews
 @Composable
-internal fun RageshakeDialogContentLightPreview() = ElementPreviewLight { ContentToPreview() }
+internal fun RageshakeDialogContentLightPreview() {
+    ElementPreview { ContentToPreview() }
+}
 
-@Preview
+@ElementPreviews
 @Composable
 internal fun RageshakeDialogContentDarkPreview() = ElementPreviewDark { ContentToPreview() }
 

features/rageshake/api/src/main/kotlin/io/element/android/features/rageshake/api/preferences/RageshakePreferencesView.kt

@@ -20,14 +20,14 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
+import io.element.android.libraries.designsystem.preview.ElementPreviews
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import io.element.android.libraries.designsystem.components.preferences.PreferenceCategory
 import io.element.android.libraries.designsystem.components.preferences.PreferenceSlide
 import io.element.android.libraries.designsystem.components.preferences.PreferenceSwitch
 import io.element.android.libraries.designsystem.components.preferences.PreferenceText
+import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
-import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.ui.strings.CommonStrings
 
 @Composable
@@ -66,12 +66,13 @@ fun RageshakePreferencesView(
     }
 }
 
-@Preview
+@ElementPreviews
 @Composable
-fun RageshakePreferencesViewLightPreview(@PreviewParameter(RageshakePreferencesStateProvider::class) state: RageshakePreferencesState) =
-    ElementPreviewLight { ContentToPreview(state) }
+fun RageshakePreferencesViewLightPreview(@PreviewParameter(RageshakePreferencesStateProvider::class) state: RageshakePreferencesState) {
+    ElementPreview { ContentToPreview(state) }
+}
 
-@Preview
+@ElementPreviews
 @Composable
 fun RageshakePreferencesViewDarkPreview(@PreviewParameter(RageshakePreferencesStateProvider::class) state: RageshakePreferencesState) =
     ElementPreviewDark { ContentToPreview(state) }