feat: Flake | revamp entire flake (#1)

Reviewed-on: #1

dotfiles/nvim/lua/plugins/configs/mason.lua

@@ -0,0 +1,28 @@
+local options = {
+  ensure_installed = { "lua-language-server" }, -- not an option from mason.nvim
+
+  PATH = "skip",
+
+  ui = {
+    icons = {
+      package_pending = " ",
+      package_installed = "󰄳 ",
+      package_uninstalled = " 󰚌",
+    },
+
+    keymaps = {
+      toggle_server_expand = "<CR>",
+      install_server = "i",
+      update_server = "u",
+      check_server_version = "c",
+      update_all_servers = "U",
+      check_outdated_servers = "C",
+      uninstall_server = "X",
+      cancel_installation = "<C-c>",
+    },
+  },
+
+  max_concurrent_installers = 10,
+}
+
+return options