oscar: Enable adb

Among other effects, this module installs the `android-tools` package,
which also provides `fastboot`.

oscar/configuration.nix

@@ -160,7 +160,6 @@
       imagemagick
       killall
       pv
-      scrcpy
       unzip
       wl-clipboard
 
@@ -186,6 +185,8 @@
 
     programs.thunderbird.enable = true;
 
+    programs.adb.enable = true;
+
     programs.bash.enable = true;
 
     programs.direnv = {
@@ -349,8 +350,6 @@
     power-profiles-daemon
   ];
 
-  programs.adb.enable = true;
-
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;