Add HEIF image support

Added pillow-heif to build requirements to support compressing/processing HEIC images. For the time being HEIC/HEIF images are turned into JPEGs as browsers don’t natively support them.

12:50pm on August 11, 2023 from Oberstdorf, Germany


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           uid: ef82d826-2c8f-4daf-b28a-2cf84bd817b6
          slug: 2023/08/11/125042
         title: Add HEIF image support
      category: notes
     secondary: changelogs
     available: 2023-08-11 12:50:42
       created: 2023-08-11 12:50:42
       updated: 2023-08-11 12:50:42
       creator: Silas Jelley
   description: Added pillow-heif to build requirements to support compressing/processing HEIC images. For the time being HEIC/HEIF images are turned into JPEGs as browsers don’t natively support them.
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