Beta v1.3.4 "Gen6 Update"

Changes:

- Libraries update (Electron Beta6, Chrome 76).
- System window controls are replaced with new ones.
- New tabs list button.
- New sidebar icon.
- New scrollbar style.
- The hotkey window can now be resized.
- New shortcut for settings (Ctrl + Comma).
- Increased app name font size on about page.
- Now the bookmark opens in the current tab.

Added:

- Added tab close button animation.
- Added mouse wheel events on the search panel.
- Added pin/unpin sidebar button.

Fixes:

- Fixed Google Auth freeze.
- Fixed invisible tabs after fullscreen mode.
- Fixed bookmark middle click.