feat: Update FlexSearch and Add Support for All Languages (#2108)

* chore(deps): update flexsearch to version 0.8.205 and adjust search encoder.

* refactor(search): enhance search encoder and update search results type

- Improved the encoder function to filter out empty tokens.
- Updated the search results type from a specific FlexSearch type to a more generic 'any' type for flexibility.
- Removed redundant rtl property from the index configuration.

* refactor(search): remove rtl property from search index configuration

* refactor(search): improve encoder function formatting

- Updated the encoder function to use consistent arrow function syntax for better readability.

* refactor(search): update search results type to DefaultDocumentSearchResults

- Imported DefaultDocumentSearchResults from FlexSearch for improved type safety.
- Changed the type of searchResults from 'any' to DefaultDocumentSearchResults<Item> for better clarity and maintainability.

package-lock.json

@@ -20,7 +20,7 @@
         "cli-spinner": "^0.2.10",
         "d3": "^7.9.0",
         "esbuild-sass-plugin": "^3.3.1",
-        "flexsearch": "0.7.43",
+        "flexsearch": "^0.8.205",
         "github-slugger": "^2.0.0",
         "globby": "^14.1.0",
         "gray-matter": "^4.0.3",
@@ -3189,9 +3189,36 @@
       }
     },
     "node_modules/flexsearch": {
-      "version": "0.7.43",
-      "resolved": "https://registry.npmjs.org/flexsearch/-/flexsearch-0.7.43.tgz",
-      "integrity": "sha512-c5o/+Um8aqCSOXGcZoqZOm+NqtVwNsvVpWv6lfmSclU954O3wvQKxxK8zj74fPaSJbXpSLTs4PRhh+wnoCXnKg=="
+      "version": "0.8.205",
+      "resolved": "https://registry.npmjs.org/flexsearch/-/flexsearch-0.8.205.tgz",
+      "integrity": "sha512-REFjMqy86DKkCTJ4gIE42c9MVm9t1vUWfEub/8taixYuhvyu4jd4XmFALk5VuKW4GH4VLav8A4BJboTsslHF1w==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/ts-thomas"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/flexsearch"
+        },
+        {
+          "type": "patreon",
+          "url": "https://patreon.com/user?u=96245532"
+        },
+        {
+          "type": "liberapay",
+          "url": "https://liberapay.com/ts-thomas"
+        },
+        {
+          "type": "paypal",
+          "url": "https://www.paypal.com/donate/?hosted_button_id=GEVR88FC9BWRW"
+        },
+        {
+          "type": "bountysource",
+          "url": "https://salt.bountysource.com/teams/ts-thomas"
+        }
+      ],
+      "license": "Apache-2.0"
     },
     "node_modules/format": {
       "version": "0.2.2",