fix: should merge copy config correctly when copy config type is different

[9aoy]

Summary

should merge copy config correctly when copy config type difference.

// config1 
output: {
  copy: {
    patterns: [
      {
        from: '../../../assets/icon.png',
      },
    ],
   },
},

// config2
output: {
  copy: [
    {
      from: '../../../assets/image.png',
    },
  ],
},

expect:

output: {
  copy: {
    patterns: [
      {
        from: '../../../assets/icon.png',
      },
      {
        from: '../../../assets/image.png',
      },
    ],
  },
},

actual:

output: {
  copy: [
    {
      patterns: [
        {
          from: '../../../assets/icon.png',
        },
      ],
    },
    {
      from: '../../../assets/image.png',
    },
  ],
 }

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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