Added Snippets and cleanup .script/startup.sh

vim/.vim/plugin/plugins.vim

@@ -2,7 +2,16 @@ runtime macros/matchit.vim
 filetype on
 
 call plug#begin()
+Plug 'SirVer/ultisnips'
+Plug 'honza/vim-snippets'
 Plug 'lervag/vimtex'
 Plug 'sheerun/vim-polyglot'
 Plug 'fatih/vim-go'
+Plug 'SirVer/ultisnips'
 call plug#end()
+
+let g:polyglot_disabled = ['latex']
+
+let g:UltiSnipsExpandTrigger="<tab>"
+let g:UltiSnipsJumpForwardTrigger="<c-b>"
+let g:UltiSnipsJumpBackwardTrigger="<c-z>"