Add manual configuration screen (#1926)

* Add manual configuration screen

* nit

* Update locales [skip ci]

---------

Co-authored-by: github-actions <github-actions@github.com>

src/locales/en/main.json

@@ -146,6 +146,13 @@
       "customInstallRequirements": "Install all requirements and dependencies (e.g. custom torch)",
       "customMayNotWork": "This is entirely unsupported, and may simply not work"
     },
+    "manualConfiguration": {
+      "title": "Manual Configuration",
+      "requirements": "Requirements",
+      "createVenv": "You will need to create a virtual environment in the following directory",
+      "virtualEnvironmentPath": "Virtual environment path",
+      "restartWhenFinished": "When you have finished configuring the virtual environment, please restart ComfyUI."
+    },
     "settings": {
       "autoUpdate": "Automatic Updates",
       "allowMetrics": "Crash Reports",