Update i3/config

- Use hjkl keys for navigation;
- Set wallpaper using ~/.config/wallpaper;
- Set keyboard language layouts;
- Show current keyboard layout in i3bar.
Add i3/i3status.sh

i3status wrapper for additional information on the i3bar.
Update i3/i3status.conf

Do not show ipv6 and vpn info.
Indicate the filesystem for which the free space is shown.
Update mpv/config

Update option name.
Update vimrc

- Add vim-qml syntax plugin;
- Add some keybindings;
- Tell YCM to complete in comments;
- Tell YCM to close the preview window when leaving insert mode.
Update zsh-plugins/cherry-git

- git-clean-ignored: do not clean .gitignored file;
- add git-clean-all-make: cleans the repository by calling 'make
  distclean'.
Update zshrc

- add sqlite3 alias passing some options;
- alias colordiff as diff.