several UI improvements changed accent color (active buttons, etc... now same as in administration) colored box headers (for better look n feel and to reduce header size even more -> color contrast instead of big font-size) button colors changed from black to dark grey added transparency to boxes and buttons

# documentation
**/README*
**/docs
**/*.md

# backend binary
cmd/gemma/gemma

# Dependency directories
**/node_modules

# local dotenv environment variables file
client/.env.local

# Tags tables
**/TAGS