Refactor theme files and add new page template

- Updated page-91.php to add an ID to the c-tabs div for better targeting.
- Changed package name in content-page.php from 'brpfinanse' to 'BRPP_prawo_podatki' and updated related function calls.
- Cleaned up content.php by removing commented-out code and unnecessary whitespace.
- Added VSCode settings for live Sass compilation.
- Created a new page template (page-3.php) for the privacy policy with appropriate structure and comments.

.vscode/settings.json

@@ -0,0 +1,17 @@
+{
+  "liveSassCompile.settings.formats": [
+    {
+      "format": "compressed",
+      "extensionName": ".css",
+      "savePath": "",
+      "savePathSegmentKeys": null,
+      "savePathReplaceSegmentsWith": null
+    }
+  ],
+  "liveSassCompile.settings.generateMap": true,
+  "liveSassCompile.settings.autoprefix": "defaults",
+  "liveSassCompile.settings.watchOnLaunch": true,
+  "liveSassCompile.settings.includeItems": [
+    "wp-content/themes/brpfinanse/css/*.scss",
+  ]
+}