Refactor and update

Updated dependencies, removed TweakpaneSettings, migrated to Jest, divided into modules, changed cartesianToPolar to using Point instead of coordinates, renamed intersection to intersectCircles, added intersectLines and PID class

.github/workflows/publish.yml

@@ -0,0 +1 @@
+# TODO

.github/workflows/tests.yml

@@ -0,0 +1,22 @@
+name: Tests
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm ci --no-audit
+      - name: Run Jest tests
+        run: npm test

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-package-lock.json
+package-lock.json
+coverage