feat: First Time Onboarding

[markphelps]

This is a follow up to #2730

It has the following behaviour

• First time user runs Flipt, there will be no local storage user: { completedOnboarding } value set, so it will show the new Onboarding page with a button to say 'Completed'
• Once user clicks this button, it will set the above mentioned value in local storage and redirect user to /flags which was the previous default page
• User can still access Onboarding page from Support, but no Complete button will show

This PR also adds a new Button variant soft and changes the Button component to use variant instead of primary

It also fixes an issue with memorization and redux

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (32b7d1c) 73.03% compared to head (277f21f) 72.96%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2732      +/-   ##
==========================================
- Coverage   73.03%   72.96%   -0.08%     
==========================================
  Files          85       85              
  Lines        8374     8374              
==========================================
- Hits         6116     6110       -6     
- Misses       1880     1884       +4     
- Partials      378      380       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[erka]

It looks great!

I have only one comment and suggestion.
I have doubts about naming of user store. It could confuse a bit in a future. self in session is actually user information and having user in store with non user information... Sadly I don't have any suggestion about better naming right now.

[markphelps]

It looks great!

I have only one comment and suggestion. I have doubts about naming of user store. It could confuse a bit in a future. self in session is actually user information and having user in store with non user information... Sadly I don't have any suggestion about better naming right now.

Good idea. I renamed it to eventStore as its an event the user performs in the UI. Happy to think of other names as well though. I chose event because there may be other events/actions that we want to keep track of in the UI only in the future

[erka]

perfect!