List only micromamba environments with jupyter kernel(s)

tests/data/micromamba/global/envs/baz/share/jupyter/kernels/python3/kernel.json

@@ -0,0 +1,14 @@
+{
+    "argv": [
+        "/micromamba/global/envs/baz/bin/python",
+        "-m",
+        "ipykernel_launcher",
+        "-f",
+        "{connection_file}"
+    ],
+    "display_name": "Baz (GLOBAL)",
+    "language": "python",
+    "metadata": {
+        "debugger": true
+    }
+}

tests/data/micromamba/john-doe/envs/bar/share/jupyter/kernels/python3/kernel.json

@@ -0,0 +1,14 @@
+{
+    "argv": [
+        "/micromamba/john-doe/envs/bar/bin/python",
+        "-m",
+        "ipykernel_launcher",
+        "-f",
+        "{connection_file}"
+    ],
+    "display_name": "Bar (USER)",
+    "language": "python",
+    "metadata": {
+        "debugger": true
+    }
+}

tests/data/micromamba/john-doe/envs/foo/share/jupyter/kernels/foo/kernel.json

@@ -0,0 +1,14 @@
+{
+    "argv": [
+        "/micromamba/john-doe/envs/foo/bin/python",
+        "-m",
+        "ipykernel_launcher",
+        "-f",
+        "{connection_file}"
+    ],
+    "display_name": "Custom Foo (USER)",
+    "language": "python",
+    "metadata": {
+        "debugger": true
+    }
+}