plugin: conjure sub-menu key labels in which-key version 3

[practicalli-johnny]

Which-key version 3 has been release making it even easier to define key mappings and add labels.

Which-key uses the group key to define a sub-menu.

<localleader> can be used to define the groups should be under the , local leader key mapping

In theory, adding code to the n normal section of lua/plugins/user-practicalli.lua should set labels on the sub-menus.

Example:

          -- Clojure Conjure sub-menu
          ["<LocalLeader>c"] = { group = "Connection" },
          ["<LocalLeader>e"] = { group = "Evaluate" },
          ["<LocalLeader>g"] = { group = "Go" },
          ["<LocalLeader>l"] = { group = "REPL Log" },
          ["<LocalLeader>r"] = { group = "Reset REPL State" },
          ["<LocalLeader>s"] = { group = "REPL Session" },
          ["<LocalLeader>t"] = { group = "Test" },
          ["<LocalLeader>v"] = { group = "Value" },

NOTE: One challenge is that its not obvious if these names or indeed the localleader key mappings for conjure can be specific to clojure mode.
This concern was discussed in Olical/conjure#585

[practicalli-johnny]

Settting the sub-menus in the which-key configuration for the moment