added wrapper and navbar

app/components/Navbar/Navbar.scss

@@ -0,0 +1,47 @@
+@import '../../scss/variables';
+
+.Navbar {
+    position: fixed;
+    display: flex;
+    flex-direction: column;
+    top: 0;
+    left: 0;
+    height: 100%;
+    width: $navbarWidth;
+    background-color: $gray2;
+    border-right: 1px solid darken($gray2, 2%);
+    overflow-y: auto;
+}
+
+.Navbar__header {
+    min-height: 100px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background-color: $gray2;
+}
+
+.Navbar__item {
+    min-height: 50px;
+    text-decoration: none;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    text-align: center;
+    color: $white;
+    transition: background-color 0.1s linear;
+    
+    &:hover {
+        background-color: $gray1; 
+    }
+    
+    & + .Navbar__item {
+        border-top: 1px solid $gray1;
+    }
+    
+}
+
+.Navbar__item--active {
+    padding-left: 4px;
+    border-right: 4px solid $primaryBlue;
+}