compat(footnote): support footnote text in alt attribute of the image, closes #3576 (#3587)

refactor: remove unused continuous scroll

apps/readest-app/src/services/commandRegistry.ts

@@ -392,12 +392,6 @@ const controlPanelItems = [
     keywords: ['scroll', 'scrolled', 'mode', 'paginate', 'continuous'],
     section: 'Scroll',
   },
-  {
-    id: 'settings.control.continuousScroll',
-    labelKey: _('Continuous Scroll'),
-    keywords: ['continuous', 'scroll', 'endless', 'infinite'],
-    section: 'Scroll',
-  },
   {
     id: 'settings.control.overlapPixels',
     labelKey: _('Overlap Pixels'),

apps/readest-app/src/services/constants.ts

@@ -184,7 +184,6 @@ export const DEFAULT_BOOK_LAYOUT: BookLayout = {
   swapClickArea: false,
   disableDoubleClick: false,
   volumeKeysToFlip: false,
-  continuousScroll: false,
   maxColumnCount: 2,
   maxInlineSize: getDefaultMaxInlineSize(),
   maxBlockSize: getDefaultMaxBlockSize(),