fix(vue): Use get_install_path() from mason registery to find volar installation path (#1531)

* fix: mason env variable not defined while loading, use 'get_install_path()' instead

* chore: forgot the concat operator

Author: shubham-cpp

lua/astrocommunity/pack/vue/init.lua

@@ -39,8 +39,7 @@ return {
               local vuels = registry.get_package "vue-language-server"
 
               if vuels:is_installed() then
-                local volar_install_path =
-                  vim.fn.expand "$MASON/packages/vue-language-server/node_modules/@vue/language-server"
+                local volar_install_path = vuels:get_install_path() .. "/node_modules/@vue/language-server"
 
                 local vue_plugin_config = {
                   name = "@vue/typescript-plugin",