Merge "m3: update primary color tokens' value to match Material3 design" into main

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<!-- TODO(b/372524566): update color token's value to match material3 design. -->

<resources>

    <color name="system_primary_dark">#E9DDFF</color>

    <color name="system_primary_fixed_dim">#D0BCFF</color>

    <color name="system_on_primary_dark">#210F48</color>

    <color name="system_primary_container_dark">#4D3D76</color>

    <color name="system_on_primary_container_dark">#F6EDFF</color>

</resources>