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.

tailwind.config.js

@@ -1,47 +1,9 @@
-/** @type {import('tailwindcss').Config} */
 module.exports = {
-    presets: [require('./themes/chill-theme/tailwind.config.js')],
-    content: [
-      "./themes/chill-theme/layouts/**/*.html",
-      "./layouts/**/*.html",
-      "./content/**/*.{html,md}"
-    ],
-
-    theme: {
-      extend: {
-      colors: {
-        primary: {
-          50: '#f46839',
-          100: '#f46839',
-          200: '#f46839',
-          300: '#f46839',
-          400: '#f46839',
-          500: '#f46839',
-          600: '#f46839',
-          700: '#f46839',
-          800: '#f46839',
-          900: '#f46839',
-        },
-        secondary: {
-          50: 'rgba(67, 178, 157, 0.61)',
-          100: 'rgba(67, 178, 157, 0.61)',
-          200: 'rgba(67, 178, 157, 0.61)',
-          300: 'rgba(67, 178, 157, 0.61)',
-          400: 'rgba(67, 178, 157, 0.61)',
-          500: 'rgba(67, 178, 157, 0.61)',
-          600: 'rgba(67, 178, 157, 0.61)',
-          700: 'rgba(67, 178, 157, 0.61)',
-          800: 'rgba(67, 178, 157, 0.61)',
-          900: 'rgba(67, 178, 157, 0.61)',
-        },
-      },
-      fontFamily: {
-        sans: ['Lato', 'sans-serif'],
-      },
-    },
-    plugins: [
-      require('@tailwindcss/forms'),
-      require('@tailwindcss/typography'),
-    ],
-  }
+  presets: [require('./themes/chill-theme/tailwind.config.js')],
+  content: [
+    "./themes/chill-theme/layouts/**/*.html",
+    "./layouts/**/*.html",
+    "./content/**/*.{html,md}"
+  ]
+  // Ne redéfinis pas theme.colors ici !
 }