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/assets/css/main.css

@@ -40,15 +40,15 @@
   }
 
   .btn-primary {
-    @apply btn bg-primary-600 text-white hover:bg-primary-700 hover:scale-105;
+    @apply btn bg-primary-400 text-white hover:bg-primary-400 hover:scale-105;
   }
 
   .btn-secondary {
-    @apply btn bg-secondary-600 text-white hover:bg-secondary-700 hover:scale-105;
+    @apply btn bg-secondary-400 text-white hover:bg-secondary-700 hover:scale-105;
   }
 
   .btn-outline {
-    @apply btn border-2 border-primary-600 text-primary-600 hover:scale-105;
+    @apply btn border-2 border-primary-400 text-primary-400 hover:scale-105;
   }
 
   .container {
@@ -146,7 +146,7 @@
   }
 
   .prose a {
-    @apply text-primary-600 hover:text-primary-700 no-underline;
+    @apply text-primary-600 hover:text-primary-400 no-underline;
   }
 
   .prose ul, .prose ol {
@@ -187,12 +187,12 @@
 }
 .features-carousel__nav { margin-bottom: 1rem; text-align: center; }
 .features-carousel__nav button {
-  @apply btn text-gray-900 hover:text-primary-700;
+  @apply btn text-gray-900 hover:text-primary-400;
   max-height:40px;
 }
 
 .features-carousel__nav button.active {
-  @apply btn bg-primary-600 text-white hover:bg-primary-700 hover:scale-105;
+  @apply btn bg-primary-400 text-white hover:bg-primary-400 hover:scale-105;
 }
 
 .features-carousel__slides { min-height: 150px; }