treewide: fix typos (#3618)

modules/programs/fish.nix

@@ -375,7 +375,7 @@ in {
           # Aliases
           ${aliasesStr}
 
-          # Interactive shell intialisation
+          # Interactive shell initialisation
           ${cfg.interactiveShellInit}
 
         end

modules/programs/kodi.nix

@@ -82,7 +82,7 @@ let
   attrsetToXml = attrs: name: stylesheet:
     pkgs.runCommand name {
       # Package splicing for libxslt does not work correctly leading to errors
-      # when cross-compiling. Use the version from buildPackages explicitely to
+      # when cross-compiling. Use the version from buildPackages explicitly to
       # fix this.
       nativeBuildInputs = [ pkgs.buildPackages.libxslt.bin ];
       xml = builtins.toXML attrs;

modules/programs/mbsync.nix

@@ -174,7 +174,7 @@ let
         flatten (optionals (group.channels != { }) ([ "Group ${group.name}" ]
           ++ (genChannelStrings group.name group.channels)));
       # Given set of groups, generates list of strings, where each string is one
-      # of the groups and its consituent channels.
+      # of the groups and its constituent channels.
       genGroupsStrings = mapAttrsToList (name: info:
         concatStringsSep "\n" (genGroupChannelString groups.${name})) groups;
       # Join all non-empty groups.

modules/programs/mujmap.nix

@@ -186,7 +186,7 @@ let
       default = null;
       example = "https://jmap.example.com/.well-known/jmap";
       description = ''
-        Sesion URL to connect to.
+        Session URL to connect to.
         </para><para>
         Mutually exclusive with
         <xref linkend="opt-accounts.email.accounts._name_.mujmap.settings.fqdn"/>.