feature: project-profile page

- css added or reviewed
- templates added or reviewed (customer, business provider, team)
- modal added and stylised
- routes reviewed
- navbar reviewed (adapted according to the content of the main section
- admin status added
- new staging added.

src/styles/base/menu-left.scss

@@ -3,7 +3,8 @@
   color: $color-0-0-100;
   display: block;
   max-width: 250px;
-  overflow: auto;
+  min-height: calc(100vh - 83px); /* 83px = nav height */
+  flex: 1;
   /*transition: flex-basis 0.5s ease-in-out;*/
 
   &.open {