Add some more work bookmarks

Added:
- Marval
- U4BW
- JET Mimics

programs/firefox/bookmarks/bookmarks.json

@@ -101,6 +101,14 @@
     "name": "Work",
     "bookmarks": [
       { "name": "Nucleus", "url": "https://nucleus.ukaea.uk/" },
+      {
+        "name": "Marval",
+        "url": "https://marval.service.ukaea.uk/MSMSelfService/Index.aspx"
+      },
+      {
+        "name": "U4BW",
+        "url": "https://ubw.unit4cloud.com/uk_aea_prod_web/Login/Login.aspx"
+      },
       {
         "name": "JET",
         "bookmarks": [
@@ -114,6 +122,9 @@
             "url": "https://www.jspo.jet.uk/pages/operations/jpecreports_2023.html"
           },
           { "name": "DVCM Homepage", "url": "https://dvcm.jetdata.eu/" },
+          {
+            "name": "Data",
+            "bookmarks": [
               {
                 "name": "JET Data Services",
                 "url": "https://data.jet.uk",
@@ -131,6 +142,25 @@
               }
             ]
           },
+          {
+            "name": "Mimics",
+            "bookmarks": [
+              {
+                "name": "Countdown",
+                "url": "http://webmimic.jet.uk/mc/codas/countdown"
+              },
+              {
+                "name": "KS5",
+                "url": "http://webmimic.jet.uk/DG/codas/ks5.mim.html"
+              },
+              {
+                "name": "KT3",
+                "url": "http://webmimic.jet.uk/DG/codas/kt3spec.mim.html"
+              }
+            ]
+          }
+        ]
+      },
       {
         "name": "MAST-U",
         "bookmarks": [