start modularisation and breaking down the monofile

src/seqta/utils/CreateEnable/CreateBackground.ts

@@ -0,0 +1,23 @@
+export function CreateBackground() {
+  var bkCheck = document.getElementsByClassName("bg")
+  if (bkCheck.length !== 0) {
+    return
+  }
+  // Creating and inserting 3 divs containing the background applied to the pages
+  var bklocation = document.getElementById("container")
+  var menu = document.getElementById("menu")
+  var bk = document.createElement("div")
+  bk.classList.add("bg")
+
+  bklocation!.insertBefore(bk, menu)
+
+  var bk2 = document.createElement("div")
+  bk2.classList.add("bg")
+  bk2.classList.add("bg2")
+  bklocation!.insertBefore(bk2, menu)
+
+  var bk3 = document.createElement("div")
+  bk3.classList.add("bg")
+  bk3.classList.add("bg3")
+  bklocation!.insertBefore(bk3, menu)
+}