[fenix] For https://github.com/mozilla-mobile/fenix/issues/23761 - Update Action Secondary light theme to LightGrey30

app/src/main/java/org/mozilla/fenix/theme/FirefoxTheme.kt

@@ -111,7 +111,7 @@ private val lightColorPalette = FirefoxColors(
     gradientStart = PhotonColors.Violet70,
     gradientEnd = PhotonColors.Violet40,
     actionPrimary = PhotonColors.Ink20,
-    actionSecondary = PhotonColors.LightGrey40,
+    actionSecondary = PhotonColors.LightGrey30,
     actionTertiary = PhotonColors.LightGrey40,
     actionQuarternary = PhotonColors.LightGrey10,
     formDefault = PhotonColors.DarkGrey90,

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

@@ -28,7 +28,7 @@
     <!-- Primary button, Snackbar, Floating action button, Chip selected -->
     <color name="fx_mobile_action_color_primary">@color/photonInk20</color>
     <!-- Secondary button -->
-    <color name="fx_mobile_action_color_secondary" tools:ignore="UnusedResources">@color/photonLightGrey40</color>
+    <color name="fx_mobile_action_color_secondary" tools:ignore="UnusedResources">@color/photonLightGrey30</color>
     <!-- Filter -->
     <color name="fx_mobile_action_color_tertiary" tools:ignore="UnusedResources">@color/photonLightGrey40</color>
     <!-- Chip -->