Improve i3 configurations to work alongside Plasma

+ Add alias to restart plasmashell
+ Fix date display in conky for i3 sessions
+ Fix polybar height for better display with new font size
+ Add floating rules in i3 for Steam and Signal
+ Use i3 configuration to bind custom keys instead of xbindkeys
+ Relocate `.desktop` files to `.local/share/applications`
+ Symlink desktop files for startup applications to `.config/autostart`

.config/i3/config

@@ -32,6 +32,13 @@ focus_follows_mouse no
 #bindsym $mod+Ctrl+Left exec --no-startup-id i3empty.py prev
 bindsym $mod+Shift+z exec --no-startup-id $HOME/.local/bin/i3scripts/i3empty.py
 
+# Keybinds for laptop media keys
+bindsym XF86AudioMute exec "pactl set-sink-mute @DEFAULT_SINK@ toggle"
+bindsym XF86AudioLowerVolume exec "pulsemixer --change-volume -5"
+bindsym XF86AudioRaiseVolume exec "pulsemixer --change-volume +5 --max-volume 125"
+bindsym XF86MonBrightnessUp exec "brightnessctl s +2.5%"
+bindsym XF86MonBrightnessDown exec "brightnessctl s 2.5%-"
+
 # Font for window titles. Will also be used by the bar unless a different font
 # is used in the bar {} block below.
 font pango:Inconsolata Nerd Font Mono 10
@@ -163,6 +170,8 @@ for_window [class="Blueman-manager"] resize set width 600
 for_window [class="Blueman-manager"] move position center
 
 for_window [class="systemsettings"] floating enable
+for_window [class="Steam"] floating enable
+for_window [class="Signal"] floating enable
 
 # start dmenu (a program launcher)
 bindsym $mod+d exec dmenu_run