update(examples): Add Save & Restore example

* add localforage to dev deps

pnpm-lock.yaml

@@ -22,6 +22,7 @@ specifiers:
   eslint-config-prettier: ^8.3.0
   eslint-plugin-prettier: ^3.4.1
   fast-deep-equal: ^3.1.3
+  localforage: ^1.10.0
   np: ^7.5.0
   pinia: ^2.0.0-rc.14
   pnpm: ^6.18.0
@@ -68,6 +69,7 @@ devDependencies:
   eslint: 7.32.0
   eslint-config-prettier: 8.3.0_eslint@7.32.0
   eslint-plugin-prettier: 3.4.1_6e975bd57c7acf028c1a9ddbbf60c898
+  localforage: 1.10.0
   np: 7.5.0
   pnpm: 6.18.0
   postcss: 8.3.9
@@ -3416,6 +3418,10 @@ packages:
     engines: {node: '>= 4'}
     dev: true
 
+  /immediate/3.0.6:
+    resolution: {integrity: sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=}
+    dev: true
+
   /import-cwd/3.0.0:
     resolution: {integrity: sha512-4pnzH16plW+hgvRECbDWpQl3cqtvSofHWh44met7ESfZ8UZOWWddm8hEyDTqREJ9RbYHY8gi8DqmaelApoOGMg==}
     engines: {node: '>=8'}
@@ -3967,6 +3973,12 @@ packages:
       type-check: 0.4.0
     dev: true
 
+  /lie/3.1.1:
+    resolution: {integrity: sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=}
+    dependencies:
+      immediate: 3.0.6
+    dev: true
+
   /lilconfig/2.0.3:
     resolution: {integrity: sha512-EHKqr/+ZvdKCifpNrJCKxBTgk5XupZA3y/aCPY9mxfgBzmgh93Mt/WqjjQ38oMxXuvDokaKiM3lAgvSH2sjtHg==}
     engines: {node: '>=10'}
@@ -4050,6 +4062,12 @@ packages:
       mlly: 0.2.10
     dev: true
 
+  /localforage/1.10.0:
+    resolution: {integrity: sha512-14/H1aX7hzBBmmh7sGPd+AOMkkIrHM3Z1PAyGgZigA1H1p5O5ANnMyWzvpAETtG68/dC4pC0ncy3+PPGzXZHPg==}
+    dependencies:
+      lie: 3.1.1
+    dev: true
+
   /locate-path/2.0.0:
     resolution: {integrity: sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=}
     engines: {node: '>=4'}