Autosave in some configs

[TejaGo]

Every screen in the configuration section (as well as the One-Click Dictionary API key screen) requires you to click the Save button but save your changes. In some cases this is unintuitive and people keep forgetting it.

[michmech]

Done in the One-Click dictionary settings screen.

Not done anywhere else. All the other configuration screens are quite complex and I find it more logical to expect the user to let the user decide for themselves when they are ready to save their changes.