Drop seaborn dependency (#68)

* fix: plots are now using matplotlib rather than seaborn

.pre-commit-config.yaml

@@ -2,7 +2,7 @@ exclude: 'Past_Conferences_and_Schools/' # ignores the unmaintained notebooks
 
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.4.0
+  rev: v4.5.0
   hooks:
     - id: detect-private-key
       description: "Check accidental private keys in code"
@@ -16,15 +16,16 @@ repos:
   - id: markdown-toc
     name: markdown-toc
 - repo: https://github.com/nbQA-dev/nbQA
-  rev: 1.7.0
+  rev: 1.7.1
   hooks:
     - id: nbqa-black
       name: nbqa-black
       description: "Run 'black' on a Jupyter Notebook"
       language: python
       require_serial: true
-    - id: nbqa-ruff
-      name: nbqa-ruff
-      description: "Run ruff on a Jupyter notebook"
-      fail_fast: true
     - id: nbqa-isort
+- repo: https://github.com/charliermarsh/ruff-pre-commit
+  rev: v0.1.6
+  hooks:
+    - id: ruff
+      fail_fast: true