feat(Style): change layout to allow navbar to expand the whole width

src/assets/style/style.scss

@@ -13,7 +13,7 @@ html {
   font-size: calc(15px + 0.390625vw);
 }
 
-body {
+body > main {
   max-width: 95vw; /* leave some space in the end by default */
   margin: auto;
   padding: 15px 0;
@@ -27,7 +27,7 @@ section:not(.clean) {
   border-radius: var(--prj-border-radius);
 }
 
-section:not(:first-child) {
+section:not(:first-of-type) {
   margin-top: var(--prj-spacing-4);
 }
 
@@ -70,10 +70,19 @@ p:last-child {
   margin-bottom: 0;
 }
 
+.container {
+  max-width: 100%;
+}
+
 /* Main content fix width, taken from Tailwind: https://tailwindcss.com/docs/container#using-the-container */
 @each $name, $size in $screen-sizes {
   @media screen and (min-width: $size) {
-    body {
+    body > main {
+      max-width: $size;
+    }
+
+    .container {
+      margin: auto;
       max-width: $size;
     }
   }