fix(home): correct link table
feat(about): add page
fix(quiz): reset correct answers
feat(table): add all UIAA grades
feat(table): add all Yosemite grades
feat(table): add all french grades
feat(table): darken colors
feat(learn): extract ColoredBadge
feat(quiz): init
feat(table): render table based on grades from systems
feat(navigation): use active link
feat(index): update content
feat(header): add navigation
feat(theme): change success color to green
build: ignore lack of text-hex types
feat: show feedback after the answer
feat: implement first version of quiz
feat(climbing-system): init YDS and French systems