Remove all-the-icons fonts

modules/software.nix

@@ -76,27 +76,29 @@
     ## Shell
     shellcheck
     shfmt
-    # Nix
+    ## Nix
     nixfmt
     niv
     ## Python
     nodePackages.pyright
     black
-    # C/C++
+    ## C/C++
     clang-tools
-    # Javascript
+    ## Javascript
     nodePackages.javascript-typescript-langserver
-    # Go
+    ## Go
     gopls
     gotests
     gore
     golangci-lint
+    ## R
+    rPackages.lintr
+    rPackages.languageserver
   ];
 
   # Fonts declaration
   fonts.fonts = with pkgs; [
     google-fonts
-    emacs-all-the-icons-fonts
     inconsolata-nerdfont
     terminus_font_ttf
     iosevka-bin