Dimmed down grid line color

Client/src/Utils/Theme/darkTheme.js

@@ -61,6 +61,7 @@ const darkTheme = createTheme({
       icon: "#e6e6e6",
       line: "#27272a",
       fill: "#18181a",
+      grid: "#454546",
     },
     // TO BE REMOVED //
     primary: {

Client/src/Utils/Theme/lightTheme.js

@@ -59,6 +59,7 @@ const lightTheme = createTheme({
       icon: "#667085",
       line: "#d6d9dd",
       fill: "#e3e3e3",
+      grid: "#a2a3a3",
     },
     // TO BE REMOVED //
     primary: {