update lsp, keymaps, format and some other settings

lua/core/settings.lua

@@ -16,14 +16,20 @@ vim.opt.completeopt = 'menu,menuone,noselect'
 vim.opt.list = true
 
 -- correct tabbing
-vim.opt.tabstop = 2
-vim.opt.softtabstop = 2
-vim.opt.shiftwidth = 2
+vim.opt.tabstop = 4
+vim.opt.softtabstop = 4
+vim.opt.shiftwidth = 4
 vim.opt.expandtab = true
 
 -- enable foldcolumn
 vim.wo.foldcolumn = "2"
 
+-- disable wrap
+vim.opt.wrap = false
+
+-- allow "@" in filenames
+vim.opt.isfname:append("@-@")
+
 -- smart indenting by vim
 vim.api.nvim_set_option("smartindent",true)
 
@@ -39,7 +45,7 @@ vim.api.nvim_set_option("background", "dark")
 
 -- always center
 -- vim.api.nvim_set_option("scrolloff",999)
-vim.api.nvim_set_option("scrolloff",15)
+vim.opt.scrolloff = 10
 
 -- spellchecking
 vim.wo.spell = true