For #12732: Match notification accent color with app theme

app/src/main/java/org/mozilla/fenix/downloads/DownloadService.kt

@@ -6,9 +6,11 @@ package org.mozilla.fenix.downloads
 
 import mozilla.components.browser.state.store.BrowserStore
 import mozilla.components.feature.downloads.AbstractFetchDownloadService
+import org.mozilla.fenix.R
 import org.mozilla.fenix.ext.components
 
 class DownloadService : AbstractFetchDownloadService() {
     override val httpClient by lazy { components.core.client }
     override val store: BrowserStore by lazy { components.core.store }
+    override val style: Style by lazy { Style(R.color.notification_accent_color_normal_theme) }
 }

app/src/main/res/values-night/colors.xml

@@ -52,6 +52,7 @@
     <color name="search_suggestion_indicator_icon_bookmark_color_normal_theme">@color/search_suggestion_indicator_icon_bookmark_color_dark_theme</color>
     <color name="select_login_header_normal_theme">@color/accent_high_contrast_dark_theme</color>
     <color name="preference_section_header_normal_theme">@color/preference_section_header_dark_theme</color>
+    <color name="notification_accent_color_normal_theme">@color/accent_high_contrast_dark_theme</color>
 
     <color name="mozac_widget_favicon_background_normal_theme">@color/mozac_widget_favicon_background_dark_theme</color>
     <color name="mozac_widget_favicon_border_normal_theme">@color/mozac_widget_favicon_border_dark_theme</color>

app/src/main/res/values/colors.xml

@@ -257,6 +257,7 @@
     <color name="select_login_header_normal_theme">@color/accent_bright_light_theme</color>
     <color name="mozac_widget_favicon_background_normal_theme">@color/mozac_widget_favicon_background_light_theme</color>
     <color name="mozac_widget_favicon_border_normal_theme">@color/mozac_widget_favicon_border_light_theme</color>
+    <color name="notification_accent_color_normal_theme">@color/accent_bright_light_theme</color>
 
     <!-- Tab tray -->
     <color name="tab_tray_item_text_normal_theme">@color/tab_tray_item_text_light_theme</color>