add: Nouveaux assets + adaptation script

- Nouveau assets pour la page mood
- Adaptation du style css pour la page mood
- Debut d'adaptation du script de suivi d'avancement a la page de cour

styles/mood-style.css

@@ -0,0 +1,19 @@
+html{
+  scroll-behavior: smooth;
+  background-color: #0f2150;
+  color: #dddddd;
+}
+
+main{
+  display:flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  gap: 20px;
+}
+
+img{
+  width: 30vw;
+  height: auto;
+  border-radius: 100%;
+}

styles/style.css

@@ -1,10 +1,12 @@
-html { scroll-behavior: smooth; }
-
-body {
+html {
+  scroll-behavior: smooth;
   background-color: #ffffff;
   background-image: radial-gradient(circle, #d0d0d5 1.5px, transparent 1px);
   background-size: 50px 50px;
-  background-repeat: repeat;  
+  background-repeat: repeat;
+}
+
+body {  
 }
 
 header {