TF-248 Update AppBar of ThreadView

assets/images/ic_chevron_down.svg

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+<svg width="20" height="16" viewBox="0 0 20 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M4.21911 5.87534C4.56412 5.44408 5.19341 5.37416 5.62467 5.71917L9.99998 9.21941L14.3753 5.71917C14.8065 5.37416 15.4358 5.44408 15.7808 5.87534C16.1259 6.3066 16.0559 6.9359 15.6247 7.28091L10.6247 11.2809C10.2595 11.5731 9.7405 11.5731 9.37528 11.2809L4.37528 7.28091C3.94402 6.9359 3.8741 6.3066 4.21911 5.87534Z" fill="#007AFF"/>
+</svg>

assets/images/ic_filter.svg

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+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M6 12L4 12M6 12C6 12.5304 6.21071 13.0391 6.58579 13.4142C6.96086 13.7893 7.46957 14 8 14C8.53043 14 9.03914 13.7893 9.41421 13.4142C9.78929 13.0391 10 12.5304 10 12M6 12C6 11.4696 6.21071 10.9609 6.58579 10.5858C6.96086 10.2107 7.46957 10 8 10C8.53043 10 9.03914 10.2107 9.41421 10.5858C9.78929 10.9609 10 11.4696 10 12M10 12L20 12M18 18C18 17.4696 17.7893 16.9609 17.4142 16.5858C17.0391 16.2107 16.5304 16 16 16C15.4696 16 14.9609 16.2107 14.5858 16.5858C14.2107 16.9609 14 17.4696 14 18M18 18C18 18.5304 17.7893 19.0391 17.4142 19.4142C17.0391 19.7893 16.5304 20 16 20C15.4696 20 14.9609 19.7893 14.5858 19.4142C14.2107 19.0391 14 18.5304 14 18M18 18L20 18M14 18L4 18M18 6C18 5.46957 17.7893 4.96086 17.4142 4.58579C17.0391 4.21071 16.5304 4 16 4C15.4696 4 14.9609 4.21071 14.5858 4.58579C14.2107 4.96086 14 5.46957 14 6M18 6C18 6.53043 17.7893 7.03914 17.4142 7.41421C17.0391 7.78929 16.5304 8 16 8C15.4696 8 14.9609 7.78929 14.5858 7.41421C14.2107 7.03914 14 6.53043 14 6M18 6L20 6M14 6L4 6" stroke="#99A2AD" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>