chore(deps): update dependencies and devDependencies

perf(assets): update image formats to webp

perf(images): resize before/after image

feat(landing-page): replace iconify-icon with iconify/svelte

refactor(compare-image): simplify props and state handling

fix(landing-page): fix flex wrapping of landing page content

feat(compare-image): add image comparison component

chore(deps): move dependencies to correct location

chore(deps): move deps to devDependencies

refactor(routes): restructure route organization and styles

chore(assets): update favicon

chore(favicon): update favicon

feat(ui): add dark mode support to landing page

style(button): updates google login button style

feat(app): implement landing page and move app to /app route