A set of configs for fresh Linux install

In GNOME 46 overamplification got hidden. Enable it like this:

gsettings set org.gnome.desktop.sound allow-volume-above-100-percent 'true'

XKB options list is set in dconf key org.gnome.desktop.input-sources/xkb-options:

• 'grp:caps_toggle' -- switch layout
• 'grp_led:caps' -- use caps lock led
• 'compose:rctrl', 'eurosign:e', 'lv3:ralt_switch' -- other current settings