feat: Update styles and add new footer background color

- Added a footer background color using $chill-green in custom.scss and custom.css.
- Removed unused page-hero section styles from custom.scss.
- Updated pricing page content to reflect new service offerings and pricing in French.
- Created new markdown files for contact and installation guides.
- Updated hugo.toml for menu links and logo path.
- Added new CSS classes for border colors in style.css.

static/css/custom.css

@@ -18,6 +18,9 @@ body {
 header.header {
   background-color: #0d242e; }
 
+footer.footer {
+  background-color: rgba(67, 178, 157, 0.61); }
+
 .chill-pres {
   padding-top: 0rem; }
 
@@ -252,26 +255,20 @@ section.dark p {
 .hop {
   color: red; }
 
-section.page-hero {
-  height: 40vh;
-  background-color: #0d242e;
-  background-repeat: repeat;
-  background-position: top center;
-  background-image: url("/images/bg/pattern-1.png"); }
-  section.page-hero h1 {
-    color: #56c4aa; }
-  section.page-hero i {
-    color: #efefef; }
-section .content-subtitle {
+.content-subtitle {
   text-transform: uppercase;
   padding-left: 2rem; }
-section .bord-1 {
+
+.bord-1 {
   border-left: 4px solid #e89463; }
-section .bord-2 {
+
+.bord-2 {
   border-left: 4px solid #d3c7b1; }
-section .bord-3 {
+
+.bord-3 {
   border-left: 4px solid #f1d275; }
-section .bord-4 {
+
+.bord-4 {
   border-left: 4px solid rgba(67, 178, 157, 0.61); }
 
 .chapo {