Fix Links in Inline Code & Default Callout Dark Mode; Errant {}; Date/Time Zone

[eatsleeplaugh8]

Fix the following issues:

• In dark mode, inline code is styled in the same font color as background color as documented here in Pull Request Inline code in dark mode is invisible #42.
• In dark mode, link is styled in the same font color as the default call box's background color.
• In dark mode, the table header is styled in the same font color as background color as documented here in Issue Table head colour does not contrast with darkmode enabled #33
• tailwind.css file errant curly brackets {} in one of the .prose elements.
• The dates in pages and posts are off by one day.
• The navigation to and from pages and posts near the footer sometimes do not stretch to full width if the body texts are short and narrow-width.