Release 7.7.0

• Rendered legacy CSS spoiler links as spoilers in new-Reddit markdown
• Restored comment-search term highlighting in new-Reddit markdown
• Fixed blockquotes and spoilers showing as raw text in new-Reddit markdown
• Made new-Reddit blockquotes one continuous bar in the theme color
• Fixed new-Reddit spoilers breaking on backslashes and code blocks
• Made new-Reddit spoilers to match the classic hidden/revealed look