epub converter: add font styles, fix white-space

src/css_reader.py

@@ -116,7 +116,7 @@ LIVECARTA_STYLE_ATTRS_MAPPING = {
     'font-variant': lambda x: x,
     'text-align': lambda x: x,
     'font': lambda x: '',
-    'font-family': lambda x: LawCartaConfig.font_correspondence_table.get(x.capitalize()),
+    'font-family': lambda x: LawCartaConfig.font_correspondence_table.get(x) or LawCartaConfig.font_correspondence_table.get(x.capitalize()),
     'font-size': convert_font_size,
     'color': get_text_color,
     'background-color': get_bg_color,

src/html_epub_preprocessor.py

@@ -461,7 +461,7 @@ def preprocess_pre_tags(chapter_tag):
                     new_tag.append(BeautifulSoup(features='lxml').new_tag('br'))
 
         new_tag.attrs['style'] = "font-family: courier new,courier,monospace; " \
-                                 "font-size: 14px; white-space: pre-wrap;"
+                                 "font-size: 14px; white-space: nowrap;"
         pre.insert_before(new_tag)
         pre.extract()
         table = wrap_span_with_table(chapter_tag, new_tag)

src/livecarta_config.py

@@ -68,7 +68,9 @@ class LawCartaConfig:
         "Tahoma": "tahoma,geneva,sans-serif",
         "Times New Roman": "times new roman,times,serif",
         "Trebuchet MS": "trebuchet ms,helvetica,sans-serif",
-        "Verdana": "verdana,geneva,sans-serif"
+        "Verdana": "verdana,geneva,sans-serif",
+        "monospace": "courier new,courier,monospace",
+        "sans-serif": "arial,helvetica,sans-serif",
     }
 
     COLORS_MAP = {