Add svelte-check to CI.

.github/workflows/svelte-check.yml

@@ -0,0 +1,27 @@
+name: Svelte check (types and a11y)
+
+on:
+    push:
+        branches: ['main']
+    pull_request:
+        branches: ['main']
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        strategy:
+            matrix:
+                node-version: [20.x]
+
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v4
+              with:
+                  node-version: ${{ matrix.node-version }}
+                  cache: 'npm'
+            - run: npm ci
+              name: Install dependencies
+            - run: npx svelte-check --tsconfig ./tsconfig.json .svelte-kit
+              name: Run svelte-check

CHANGELOG.md

@@ -13,6 +13,10 @@ Dates are in `YYYY-MM-DD` format and versions are in [semantic versioning](http:
 -   Fixed exiting reactivity bug in StageView.
 -   Fixed Safari color emoji rendering.
 
+### Maintenance
+
+-   Add svelte-check to CI.
+
 ## 0.13.0 2024-11-02
 
 ### Fixed