Disable pre-commit workflow and update mkdocs emoji configuration

.github/workflows/pre-commit.yml

@@ -1,15 +1,16 @@
-name: pre-commit
-
-on:
-  pull_request:
-  push:
-    branches: [main]
-
-jobs:
-  pre-commit:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v5
-      # SEE https://github.com/pre-commit/action
-      - uses: pre-commit/action@v3.0.1
+# disabled. We might run it manually if needed.
+#name: pre-commit
+#
+#on:
+#  pull_request:
+#  push:
+#    branches: [main]
+#
+#jobs:
+#  pre-commit:
+#    runs-on: ubuntu-latest
+#    steps:
+#      - uses: actions/checkout@v3
+#      - uses: actions/setup-python@v5
+#      # SEE https://github.com/pre-commit/action
+#      - uses: pre-commit/action@v3.0.1