refactor: move community to a separate file

lua/community.lua

@@ -0,0 +1,10 @@
+if true then return {} end -- REMOVE THIS LINE TO ACTIVATE THIS FILE
+
+-- AstroCommunity: import any community modules here
+---@type LazySpec
+return {
+  -- TODO: Remove branch v4 on release
+  { "AstroNvim/astrocommunity", branch = "v4" },
+  { import = "astrocommunity.pack.lua" },
+  -- import/override with your plugins folder
+}