v5.5.2 Zonked Tarsier

Feature

• Add Bookmark opacity controls
• Add Header item and Open all opacity controls
• Add Theme accent colour controls
• Add Background image vignette controls
• Update font awesome icons

Refactor

• Match Theme cycle update to state default
• Improve data module load function

Bug

• Fix Header add button border being shown when opacity is set to 0
• Fix missing Theme accent HSL values in update
• Fix Theme accent accessible colour not working with gulp uglify CSS
• Fix Bookmark clip not working with gulp uglify CSS
• Fix some control fields displaying floating numbers
• Fix Header item opacity border