Partial revert "Minor fixes throughout nvim config"

This reverts commit ad8ed6069c.

Re-apply desired changes

ftplugin/rust.lua

@@ -0,0 +1 @@
+vim.keymap.set("i", "'", "'", { buffer = 0 })

lua/plugins/mini.lua

@@ -28,20 +28,11 @@ return { -- Mini is so varied it's hard to categorise. So i dumped my mini insta
 
             require("mini.deps").setup() -- For per-project/dynamic plugin loading
 
-            require("mini.pairs").setup({ mappings = { ["`"] = false } })
-            vim.api.nvim_create_autocmd("FileType", {
-                pattern = "rust",
-                callback = function()
-                    vim.b.minipairs_config = vim.tbl_deep_extend("force", require("mini.pairs").config, {
-                        mappings = { ["'"] = false },
-                    })
-                end,
-            })
-
             -- Some other mini.nvim plugins that look useful to me
             require("mini.clue").setup()
             require("mini.visits").setup()
             require("mini.sessions").setup()
+            require("mini.pairs").setup({ mappings = { ["`"] = false } })
             require("mini.comment").setup()
             require("mini.splitjoin").setup()
             require("mini.trailspace").setup()