Foot as the default terminal (#5831)

* Bind maps too

* Make foot the default terminal

default/alacritty/Alacritty.desktop

@@ -0,0 +1,21 @@
+[Desktop Entry]
+Type=Application
+TryExec=alacritty
+Exec=alacritty
+Icon=Alacritty
+Terminal=false
+Categories=System;TerminalEmulator;
+Name=Alacritty
+GenericName=Terminal
+Comment=A fast, cross-platform, OpenGL terminal emulator
+StartupNotify=true
+StartupWMClass=Alacritty
+Actions=New;
+X-TerminalArgExec=-e
+X-TerminalArgAppId=--class=
+X-TerminalArgTitle=--title=
+X-TerminalArgDir=--working-directory=
+
+[Desktop Action New]
+Name=New Terminal
+Exec=alacritty