feat(#821): Unify `local` and `refresh` providers into one

[zoey-kaiser]

🔗 Linked issue

closes #821, #730 improved on #731

❓ Type of change

• [X] 📖 Documentation (updates to the documentation, readme or JSdoc annotations)
• [ ] 🐞 Bug fix (a non-breaking change that fixes an issue)
• [X] 👌 Enhancement (improving an existing functionality like performance)
• [ ] ✨ New feature (a non-breaking change that adds functionality)
• [ ] 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• [X] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Removes the separation of the local and refresh providers and adds the extended logic from the refresh provider into an additional refresh config property of the local provider

Simple migration guide:

export default defineNuxtConfig({
    auth: {
        provider: {
-           type: 'refresh',
+           type: 'local',
            endpoints: {
                signIn: { path: '/signIn', method: 'post' },
-               refresh: { path: '/refresh', method: 'post' } 
            },
-           refreshToken: { // Refresh token config },
-           refreshOnlyToken: true,
+           refresh: {
+               isEnabled: true,
+               endpoint:  { path: '/refresh', method: 'post' },
+               refreshOnlyToken: true,
+               token: { // Refresh token config },
+           }
        }
    }
})

New local with refresh config:

export default defineNuxtConfig({
    auth: {
        provider: {
        type: 'local',
            pages: {
                login: '/login'
            },
            endpoints: {
                signIn: { path: '/login', method: 'post' },
                signOut: { path: '/logout', method: 'post' },
                signUp: { path: '/register', method: 'post' },
                getSession: { path: '/session', method: 'get' }
            },
            token: {
                signInResponseTokenPointer: '/token',
                type: 'Bearer',
                cookieName: 'auth.token',
                headerName: 'Authorization',
                maxAgeInSeconds: 30 * 60, // 30 minutes
                sameSiteAttribute: 'lax',
                secureCookieAttribute: false,
                cookieDomain: ''
            },
            session: {
                dataType: { id: 'string | number' },
                dataResponsePointer: '/'
            },
            refresh: {
                isEnabled: true,
                endpoint:  { path: '/refresh', method: 'post' },
                refreshOnlyToken: true,
                token: {
                    signInResponseRefreshTokenPointer: '/refreshToken',
                    refreshRequestTokenPointer: '/refreshToken',
                    cookieName: 'auth.refresh-token',
                    maxAgeInSeconds: 60 * 60 * 24 * 7, // 7 days
                    sameSiteAttribute: 'lax',
                    secureCookieAttribute: false,
                    cookieDomain: ''
                }
        }
        }
    }
})

📝 Checklist

• [x] I have linked an issue or discussion.
• [x] I have added tests (if possible).
• [ ] I have updated the documentation accordingly.