[fenix] Move strings to static_strings

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

@@ -57,4 +57,14 @@
     </string>
     <!-- text for the button to finish onboarding -->
     <string name="onboarding_finish" translatable="false">Start browsing</string>
+
+    <!-- Onboarding theme -->
+    <!-- Automatic theme setting (will follow device setting) -->
+    <string name="onboarding_theme_automatic_title">Automatic</string>
+    <!-- Summary of automatic theme setting (will follow device setting) -->
+    <string name="onboarding_theme_automatic_summary">Adapts to your device settings</string>
+    <!-- Theme setting for dark mode -->
+    <string name="onboarding_theme_dark_title">Dark Theme</string>
+    <!-- Theme setting for light mode -->
+    <string name="onboarding_theme_light_title">Light Theme</string>
 </resources>

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

@@ -488,15 +488,4 @@
     <string name="accessibility_text_size_sample_text">The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog.</string>
     <string name="preference_accessibility_text_size_summary">Make text on websites larger or smaller</string>
     <string name="preference_accessibility_font_size_title">Font Size</string>
-
-
-    <!-- Onboarding theme -->
-    <!-- Automatic theme setting (will follow device setting) -->
-    <string name="onboarding_theme_automatic_title">Automatic</string>
-    <!-- Summary of automatic theme setting (will follow device setting) -->
-    <string name="onboarding_theme_automatic_summary">Adapts to your device settings</string>
-    <!-- Theme setting for dark mode -->
-    <string name="onboarding_theme_dark_title">Dark Theme</string>
-    <!-- Theme setting for light mode -->
-    <string name="onboarding_theme_light_title">Light Theme</string>
 </resources>