Beta v3.0.3

changes:

toolbar:
- added back button right click history
engine:
- electron v6.0.12
updator:
- ask user if he wants to download an update
history:
- added date and time
app commands:
- if can't go back go to the overlay
hotkeys:
- new hotkey for overlay (F1)

design:

- new look of scrollbars
- added borders to all windows
- increased checkboxes corners rounding
- added close-others icon

new themes:

- twitchy-dark
- contrast-light

overlay:

- added right click menu for all text fields
- added paste and search for address bar

bookmarks:

- on-bookmark-added -> open bookmark editor
- on-folder-added -> open folder editor
- hidden folder header on editing
- custom bookmark icon for invalid urls

about window:

- added info text
- added some links
- improved look and feel

settings:

appearance:
- more compact themes preview
home page:
- save home page on checkbox clicked
- added buttons: use duckduckgo, use google, use bing, use yahoo

bug fixes:

- smooth showing ot the overlay on startup
- broken tabs
- incorrect downloads folder
- sometimes new bookmarks disappear
- some notifications are broken
- invalid overlay size