update lsp saga

lua/lsp/init.lua

@@ -13,6 +13,10 @@ vim.cmd('nnoremap <silent> K :Lspsaga hover_doc<CR>')
 vim.cmd('nnoremap <silent> <C-k> <cmd>lua vim.lsp.buf.signature_help()<CR>')
 vim.cmd('nnoremap <silent> <C-p> :Lspsaga diagnostic_jump_prev<CR>')
 vim.cmd('nnoremap <silent> <C-n> :Lspsaga diagnostic_jump_next<CR>')
+-- scroll down hover doc or scroll in definition preview
+vim.cmd('nnoremap <silent> <C-f> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(1)<CR>')
+-- scroll up hover doc
+vim.cmd('nnoremap <silent> <C-b> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(-1)<CR>')
 
 --[[ " autoformat
 autocmd BufWritePre *.js lua vim.lsp.buf.formatting_sync(nil, 100)