chore(nvim): Rename all language specific plugin to lang-*.lua files

common/.config/nvim/lua/plugins/lang-rust.lua

@@ -0,0 +1,9 @@
+return {
+    {
+        "saecki/crates.nvim",
+        tag = "stable",
+        config = function()
+            require("crates").setup()
+        end,
+    },
+}