build: switch from yarn to npm to manage js dependencies and move js contents to root

yarn v1 is being deprecated and starts to have some issues

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

tsconfig.json

@@ -1,3 +1,40 @@
 {
-  "extends": "./js/tsconfig.json"
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    "strict": true,
+    "jsx": "preserve",
+    "importHelpers": true,
+    "moduleResolution": "node",
+    "experimentalDecorators": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "sourceMap": true,
+    "baseUrl": ".",
+    "types": ["webpack-env", "jest", "vite/client", "vite-plugin-pwa/vue"],
+    "typeRoots": ["./@types", "./node_modules/@types"],
+    "paths": {
+      "@/*": ["src/*"]
+    },
+    "lib": [
+      "esnext",
+      "dom",
+      "es2017.intl",
+      "dom.iterable",
+      "scripthost",
+      "webworker"
+    ]
+  },
+  "include": [
+    "src/**/*.ts",
+    "src/**/*.tsx",
+    "src/**/*.vue",
+    "tests/**/*.ts",
+    "tests/**/*.tsx",
+    "env.d.ts"
+  ],
+  "exclude": ["node_modules"]
 }