add comment to ftplugin/java.lua, and fix some typos

after/plugin/mason.lua

@@ -3,7 +3,7 @@ if not status_ok then
 	return
 end
 
-mason.setup({
+mason.setup {
   ui = {
     border = "shadow",
     width = 0.6,
@@ -26,4 +26,4 @@ mason.setup({
     cancel_installation = "<C-c>", -- Keymap to cancel a package installation
     apply_language_filter = "<C-f>", -- Keymap to apply language filter
   },
-})
+}

after/plugin/neorg.lua

@@ -44,7 +44,7 @@ neorg.setup {
       config = {
         zen_mode = "truezen",
       }
-    }
+    },
   }
 }