Refactor theme colors and styles; remove unused favicon; update translations and layouts

- Deleted unused favicon file.
- Updated Tailwind CSS configuration to redefine primary and secondary colors.
- Adjusted button styles in CSS to use new color definitions.
- Removed English translations and added French translations for various UI elements.
- Created new layouts for features and updated existing layouts to reflect new design.
- Modified header and CTA components to use updated color scheme.
- Cleaned up pricing table shortcode to align with new styles.
- Updated theme metadata to reflect new author and project details.

themes/chill-theme/layouts/partials/components/cta.html

@@ -4,7 +4,7 @@
         {{ $angle := .Site.Params.cta.gradient_angle | default 45 }}
         {{ $from := .Site.Params.cta.gradient_from }}
         {{ $to := .Site.Params.cta.gradient_to }}
-        <div class="relative rounded-lg overflow-hidden bg-primary-600 cta-gradient"
+        <div class="relative rounded-lg overflow-hidden bg-primary-400 cta-gradient"
              style="--gradient-angle: {{ $angle }}; --gradient-from: {{ $from }}; --gradient-to: {{ $to }}">
             <div class="relative text-center max-w-3xl mx-auto px-6 py-10">
                 <h2 class="text-3xl md:text-4xl font-bold text-white mb-6">{{ .Site.Params.cta.title }}</h2>