replace vsnip with luasnip,clean some confs

lua/misc-utils.lua

@@ -1,7 +1,6 @@
 local opt = vim.opt
 
 opt.ruler = false
-opt.showmode = false
 opt.hidden = true
 opt.ignorecase = true
 opt.splitbelow = true
@@ -50,4 +49,18 @@ end
 
 -- file extension specific tabbing
 -- vim.cmd([[autocmd Filetype python setlocal expandtab tabstop=4 shiftwidth=4 softtabstop=4]])
+
+-- blankline config
+
+M.blankline = function()
+    vim.g.indentLine_enabled = 1
+    vim.g.indent_blankline_char = "▏"
+
+    vim.g.indent_blankline_filetype_exclude = {"help", "terminal", "dashboard"}
+    vim.g.indent_blankline_buftype_exclude = {"terminal"}
+
+    vim.g.indent_blankline_show_trailing_blankline_indent = false
+    vim.g.indent_blankline_show_first_indent_level = false
+end
+
 return M