Switching ui lib & refactoring (#80)

switch to shadcn ui
bump runtime versions (node, pnpm, etc)
refactor gui

.github/workflows/publish.yml

@@ -24,13 +24,13 @@ jobs:
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 20
 
       - uses: pnpm/action-setup@v2
         name: Install pnpm
         id: pnpm-install
         with:
-          version: 8.5.0
+          version: 8.10.0
           run_install: false
 
       - name: Get pnpm store directory