feat: reorder the header in his own file

common/common.scss

-@import 'banner';
-@import 'buttons';
-@import 'categories_box';
-@import 'footer';
-@import 'variables';
+@import 'banner', 'buttons', 'categories_box', 'footer', 'header', 'variables';
 
 input[type="text"],
 input[type="password"],
@@ -54,66 +50,6 @@ body {
   background-color: $header_primary;
 }
 
-// HEADER //
-.d-header {
-  height: 5em;
-  box-shadow: none;
-}
-
-.navigation-topics {
-  .container.list-container {
-    @include border-radius;
-    box-shadow: 0 8px 60px 0 rgba(159, 161, 165, 0.1), 0 12px 90px 0 rgba(197, 197, 197, 0.1);
-    padding: 2em;
-    border-top: 8px solid $primary-medium;
-    margin-top: .8em;
-  }
-}
-
-.menu-panel .d-label {
-  color: $primary;
-}
-
-.alert.alert-info {
-  border-radius: 10px;
-}
-
-// MENU //
-
-.menu-panel .widget-link:hover, .menu-panel .widget-link:focus,
-.menu-panel .categories-link:hover, .menu-panel .categories-link:focus {
-  background-color: var(--primary-medium-low);
-}
-
-.user-menu .quick-access-panel li:hover {
-  background-color: var(--tertiary-low);
-}
-
-// Text //
-p {
-  color: var(--primary);
-}
-
-.site-texts .site-text .site-text-value {
-  color: var(--primary);
-}
-
-.th {
-  color: var(--primary);
-}
-
-.permalink-description {
-  color: var(--quarternary);
-}
-
-.admin-customize .themes-list-container .themes-list-item.inactive-indicator {
-  color: var(--primary-medium);
-}
-
-.content-list h3 {
-  color: var(--primary-medium);
-}
-
 // PAGE home //
 .custom-homepage-columns {
   margin: 2em 0 2em 0;

scss/header.scss

+// HEADER //
+.d-header {
+    height: 5em;
+    box-shadow: none;
+}
+  
+.navigation-topics {
+.container.list-container {
+    @include border-radius;
+    box-shadow: 0 8px 60px 0 rgba(159, 161, 165, 0.1), 0 12px 90px 0 rgba(197, 197, 197, 0.1);
+    padding: 2em;
+    border-top: 8px solid $primary-medium;
+    margin-top: .8em;
+    }
+}
+
+.menu-panel .d-label {
+    color: $primary;
+}
+
+.alert.alert-info {
+    border-radius: 10px;
+}
+
+// MENU //
+
+.menu-panel .widget-link:hover, .menu-panel .widget-link:focus,
+.menu-panel .categories-link:hover, .menu-panel .categories-link:focus {
+    background-color: var(--primary-medium-low);
+}
+
+.user-menu .quick-access-panel li:hover {
+    background-color: var(--tertiary-low);
+}
+
+// TEXT //
+p {
+    color: var(--primary);
+}
+
+.site-texts .site-text .site-text-value {
+    color: var(--primary);
+}
+
+.th {
+    color: var(--primary);
+}
+
+.permalink-description {
+    color: var(--quarternary);
+}
+
+.admin-customize .themes-list-container .themes-list-item.inactive-indicator {
+    color: var(--primary-medium);
+}
+
+.content-list h3 {
+    color: var(--primary-medium);
+}