Add unit tests task

.vscode/tasks.json

@@ -316,6 +316,21 @@
         "focus": true,
         "close": false
       }
+    },
+    {
+      "label": "Test | Jest:unit",
+      "type": "shell",
+      "command": "cd ${workspaceFolder} ; yarn test ; ",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "presentation": {
+        "reveal": "always",
+        "panel": "new",
+        "focus": true,
+        "close": false
+      }
     }
   ]
 }

frontend.code-workspace

@@ -167,6 +167,11 @@
             "label": "spellcheck-force-save",
             "task": "Test | frontend-translations-spellcheck-force-save",
             "tooltip": "🛠️ Start the \"frontend translation spellcheck tests\" task"
+          },
+          {
+            "label": "unit",
+            "task": "Test | Jest:unit",
+            "tooltip": "🛠️ Start the \"Test | Jest:unit\" task"
           }
         ],
         "tooltip": "🛠️ Client tests tasks"