1.0.0-beta.87

• Enhanced style of errors on the loading data overlay
• Enhanced responsiveness and addressing issues with freezing during transition states for views related to the data loading state. Instead of setup of initial state via JavaScript, the new @starting-style at-rule is used:
  • Tweaked styles to improve the performance perception
  • Widget:
    • Removed adding of .init class to the main container in initDom()
  • App:
    • Removed adding of .init class to the overlay during the initialization phase
  • Progressbar:
    • Added adding .done and .error classes on the main container on progressbar finish
    • Removed delay option from the constructor
    • Removed appearanceDelay property
    • Removed adding .init class to the main container at the first stage change
• Changed createLoadDataState() to take a dataset factory function instead of a load data request, enhancing its reusability
• Fixed re-rendering on data unload
• Fixed Model#decodePageHash() to return null for pageRef instead of undefined
• Fixed Widget#setPageHash() to always emit hashChanged when hash changes, disregarding changes of pageId, pageRef and pageParams
• Fixed preloader styles to ensure the data loading progressbar remains visible during the prepare stage
• Fixed value counting in the signature view when a property contains duplicated objects, which previously led to incorrect optional label
• Fixed warning "Added non-passive event listener..." in Chrome caused by CodeMirror (codemirror/codemirror5#6735)
• Fixed missed error on progressbar's value when the progressbar finishes with error