fix: lazy require other dependencies

[ClSlaid]

I'm using lazy.nvim and I've just began learning lean. However, even when I'm editing projects in other languages, some annoying errors popped out from this plugin.

Failed to run `config` for lspsaga.nvim                                                                                                                                                       
/home/cl/.config/nvim/lua/modules/utils/init.lua:39: attempt to index field 'colors_name' (a nil value)                                                                                       
# stacktrace:                                                                                                                                                                                 
  - ~/.config/nvim/lua/modules/utils/init.lua:39 _in_ **get_palette**                                                                                                                         
  - ~/.config/nvim/lua/modules/utils/init.lua:150 _in_ **gen_lspkind_hl**                                                                                                                     
  - ~/.config/nvim/lua/modules/configs/completion/lspsaga.lua:2 _in_ **config**                                                                                                               
  - /lean.nvim/ftdetect/lean.lua:5                                                                                                                                                            
  - vim/_editor.lua:0 _in_ **cmd**                                                                                                                                                            
  - ~/.config/nvim/lua/core/pack.lua:128 _in_ **load_lazy**                                                                                                                                   
  - ~/.config/nvim/lua/core/pack.lua:131                                                                                                                                                      
  - ~/.config/nvim/lua/core/init.lua:166 _in_ **load_core**                                                                                                                                   
  - ~/.config/nvim/lua/core/init.lua:174                                                                                                                                                      
  - ~/.config/nvim/init.lua:2  

As is mentioned in its README, Lazy.nvim will automatically run init for all plugins, regardless of their laziness (by lazyness I mean lazy-loading). And unfortunately, the plugin has required other plugins in its ftdetect script.

It's actually an easy one-line fix, the function to call will be lazily loaded. The file is reformatted.

[rish987]

Ah, thanks! I would like to transition to lazy.nvim myself in the near future. Feel free to add your config to the wiki if you find the time (which reminds me that I also need to add my packer config).

[ClSlaid]

My NeoVim config is based on nvimdots, it's actively developed and willing to adopt new features.