adding audio post and view it

src/components/node/NodeAudioBlock/index.tsx

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+import React, { FC, useMemo } from 'react';
+import { INode } from '~/redux/types';
+import { UPLOAD_TYPES } from '~/redux/uploads/constants';
+import { AudioPlayer } from '~/components/media/AudioPlayer';
+import * as styles from './styles.scss';
+
+interface IProps {
+  node: INode;
+}
+
+const NodeAudioBlock: FC<IProps> = ({ node }) => {
+  const audios = useMemo(
+    () => node.files.filter(file => file && file.type === UPLOAD_TYPES.AUDIO),
+    [node.files]
+  );
+
+  return (
+    <div className={styles.wrap}>
+      {audios.map(file => (
+        <AudioPlayer key={file.id} file={file} />
+      ))}
+    </div>
+  );
+};
+
+export { NodeAudioBlock };

src/components/node/NodeAudioBlock/styles.scss

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+.wrap {
+  background: $content_bg;
+  border-radius: $radius;
+
+  & > div {
+    @include outer_shadow();
+
+    &:first-child {
+      border-top-left-radius: $radius;
+      border-top-right-radius: $radius;
+    }
+    &:last-child {
+      border-bottom-left-radius: $radius;
+      border-bottom-right-radius: $radius;
+    }
+  }
+}