nvim: Fix vim-slime temp file, cmp float window

Fixed hidden file creation in home directory by vim-slime. It will now
rather ask nvim to create a temporary file using that as its paste
source.

Also disabled cmp completion in 'guihua' floating windows, as per the
recommendation for navigator.lua.

nvim/.config/nvim/lua/plug/_lsp.lua

@@ -72,6 +72,8 @@ cmp.setup({
         {name = 'pandoc_references'}, {name = 'vCard'}
     }, {{name = 'buffer'}, {name = 'spell'}})
 })
+if vim.o.ft == 'clap_input' and vim.o.ft == 'guihua' and vim.o.ft ==
+    'guihua_rust' then require'cmp'.setup.buffer {completion = {enable = false}} end
 
 -- Use buffer source for `/` search
 cmp.setup.cmdline('/', {sources = {{name = 'buffer'}}})

nvim/.config/nvim/lua/plugins.lua

@@ -122,9 +122,9 @@ require("packer").startup(function()
     -- REPL work
     use {
         'jpalardy/vim-slime', -- send arbitrary code chunks to REPLs
-        ft = "python",
         config = function()
             vim.g.slime_target = 'tmux'
+            vim.g.slime_paste_file = vim.fn.tempname()
             vim.g.slime_default_config = {
                 socket_name = "default",
                 target_pane = "{last}"