chore(release): bump version to 1.1.2
- Updated manifest.json to reflect version 1.1.2.
- Updated the packaged new-tab.zip file accordingly.

fix(settings): improve hero image handling and reset behavior
- Add support for custom hero image URLs when no local image is available
- Ensure default hero image is retrieved with the correct extension URL
- Remove redundant local image handling logic in saveSettings
- Improve reset behavior by adding a delay before reloading the page

fix(bookmarks): prevent duplicate delete buttons and improve event handling
- Remove existing delete buttons before adding new ones to avoid duplicates
- Stop event propagation when clicking delete to prevent unintended behavior

refactor(settings): simplify UI update logic and reload page after saving
- Removed redundant hero background and dark mode updates
- Unified UI update logic by closing the popup and reloading the page
- Ensured consistency in save messages