[ssh] Update config for boxes

ssh/.ssh/box_castine_town.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICwXbNwYkVT5Dprbe2VljB3yNNgqIGK7/aLEhDnld6aw box.castine.town

ssh/.ssh/box_unbl_ink.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAds0tNpigEejGz3JHG5i+fSAHyH2fQgeJD29Z9JFsrC box.unbl.ink

ssh/.ssh/config

@@ -27,9 +27,15 @@ Host gogs*
   Port 222
 
 # Mailinabox uses root by default
-Host box.*
+Host box.unbl.ink
+  IdentityFile ~/.ssh/box_unbl_ink
   User root
 
+Host box.castine.town
+  IdentityFile ~/.ssh/box_castine_town
+  User root
+
+
 Host akna.local
   User pi