kitchen sink...

just gonna put the changes that I can remember making here:
 - replace blink with native completion (omnifunc)
 - remove some unneeded plugins
 - add a misc function for making sure complex bindings don't cause
   flickering
 - remove some stale snippets
 - remove folding (I don't find myself folding that often)

lua/conf/plugins/treesitter.lua

@@ -1,8 +1,7 @@
-local map, auto = core.misc.map, core.misc.auto
+local map = core.misc.map
 
 return {
   { "nvim-treesitter/nvim-treesitter",
-    disable = not vim.fn.has("nvim-0.10.0"),
     config = function()
       vim.cmd("TSUpdate")
     end,