message: chore(stories): standardize alt text
diff: {
  "label": "Company A",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company B",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company C",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company D",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company E",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company F",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company G",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company H",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  },
  {
  "label": "Company I",
  "imgSrc": "https://dummyimage.com/140x140/ee5396/161616&text=1:1",
  - "altText": "placeholder"
  + "altText": "Image alt text"
  }
  ]
  