feat(neovim): Replace lualine with mini.statusline & move all mini.nvim

plugins to `utility-plugs`

- Switched for easier configuration & reduction in number of plugins
- `mini.nvim` now does way too many things to be in `code-generic`

common/.luarc.json

@@ -1,7 +1,8 @@
 {
     "diagnostics.globals": [
         "vim",
-        "Snacks"
+        "Snacks",
+        "MiniStatusline"
     ],
     "diagnostics.disable": [
         "deprecated",