nvim: Add util function to grab plugin conditionally

nvim/.config/nvim/lua/util/init.lua

@@ -5,10 +5,18 @@ local T = {}
 ---@param plugin string The plugin to search for
 ---@return boolean available # Whether the plugin is available
 function T.is_available(plugin)
-	local lazy_config_avail, lazy_config = pcall(require, "lazy.core.config")
-	return lazy_config_avail and lazy_config.plugins[plugin] ~= nil
+	return T.get_plugin(plugin) and true or false
 end
 
+-- Get the plugin file handle if it exists, return nil otherwise
+function T.get_plugin(plugin)
+    local status, lib = pcall(require, plugin)
+    if(status) then return lib end
+    return nil
+end
+
+-- get the current python environment
+-- return its path
 function T.get_python_venv(workspace)
 	return require("util.pyenv").get_path(workspace)
 end