--env-var-nav-bar-height for both NavBar and DashboardSidebar

Client/src/Components/NavBar/index.css

@@ -1,4 +1,8 @@
 /* NavBar Component Styles*/
+.css-14ds6td-MuiPaper-root-MuiAppBar-root {
+  height: var(--env-var-nav-bar-height);
+}
+
 .icon-button-toggle {
   display: flex;
   align-items: center;

Client/src/index.css

@@ -59,7 +59,7 @@
   --env-var-height-1: 100vh;
   --env-var-height-2: 34px;
 
-  --env-var-nav-bar-height: 65px;
+  --env-var-nav-bar-height: 64px;
 
   --env-var-spacing-1: 12px;
   --env-var-spacing-1-plus: 16px;