Adds some syntax highlight for the mojo programming language.

Mojo should come included with a lsp server (it hsd been spotty in my experiece so there are commented lines in the mode definition to limit the noise from the lsp).

You can add the mojo-lsp-server to your eglot config like so:

(use-package eglot                                                         
  :ensure t                                                                
    :defer t                                                                 
    :hook ((python-mode . eglot-ensure)                                      
           (go-mode . eglot-ensure)
           (go-ts-mode . eglot-ensure)
           (python-ts-mode . eglot-ensure)
           (mojo-mode . eglot-ensure))
    :config                                                                  
    (add-to-list 'eglot-server-programs '(mojo-mode . ("mojo-lsp-server"))))