Yet another bionic reading implementation

Co-authored-by: Copilot <copilot@github.com>

lib/Epub/Epub/ParsedText.h

@@ -26,8 +26,10 @@ class ParsedText {
   BlockStyle blockStyle;
   bool extraParagraphSpacing;
   bool hyphenationEnabled;
+  bool bionicReadingEnabled;
 
   void applyParagraphIndent();
+  void applyBionicReadingTransform();
   std::vector<size_t> computeLineBreaks(const GfxRenderer& renderer, int fontId, int pageWidth,
                                         std::vector<uint16_t>& wordWidths, std::vector<bool>& continuesVec);
   std::vector<size_t> computeHyphenatedLineBreaks(const GfxRenderer& renderer, int fontId, int pageWidth,
@@ -60,8 +62,11 @@ class ParsedText {
 
  public:
   explicit ParsedText(const bool extraParagraphSpacing, const bool hyphenationEnabled = false,
-                      const BlockStyle& blockStyle = BlockStyle())
-      : blockStyle(blockStyle), extraParagraphSpacing(extraParagraphSpacing), hyphenationEnabled(hyphenationEnabled) {}
+                      const BlockStyle& blockStyle = BlockStyle(), const bool bionicReadingEnabled = false)
+      : blockStyle(blockStyle),
+        extraParagraphSpacing(extraParagraphSpacing),
+        hyphenationEnabled(hyphenationEnabled),
+        bionicReadingEnabled(bionicReadingEnabled) {}
   ~ParsedText() = default;
 
   void addWord(std::string word, EpdFontFamily::Style fontStyle, bool underline = false, bool attachToPrevious = false);

lib/I18n/translations/english.yaml

@@ -598,3 +598,5 @@ STR_KB_HINT_SECONDARY_CHAR: "Hold SELECT for secondary char"
 STR_KB_HINT_UPPER_SECONDARY: "Hold SELECT for UPPERCASE or secondary char"
 STR_KB_HINT_LOWER_SECONDARY: "Hold SELECT for lowercase or secondary char"
 STR_KB_HINT_URL_SNIPPETS: "Press URL for snippets"
+STR_BIONIC_READING: "Bionic Reading"
+STR_BTN_ACT_TOGGLE_BIONIC_READING: "Toggle Bionic Reading"