Improve organization invitation with registration/login flow

[noniagriconomie]

Hello

Here is a PR that tries to improve the organization invitation process flow
fixes #381

Friendly ping @akondas

Thank you,

[akondas]

Although I like this change, what do you say to leave one button and do it like this:

The route "organization_accept_invitation" could be opened (available without logging in). In its action, it could be detected if the user is logged in, if not a redirection with 'invitationtoken to login (and then the same on the login action, you would have to render the button for registration withinvitation` token)

[noniagriconomie]

@akondas thanks for your review
agreed, I will refactor like this, will try to do it this week

[noniagriconomie]

@akondas code is rewritten, I am testing it now
new round of review appreciated

[akondas]

One change and we are ready to go 😉 👍

[akondas]

👍 LGTM

[akondas]

@noniagriconomie Also let me know if you will be able to do a rebase or can I help with it?

[codecov]

Codecov Report

Merging #387 (ef7c255) into master (d8397fe) will decrease coverage by 0.16%.
The diff coverage is 61.53%.

@@             Coverage Diff              @@
##             master     #387      +/-   ##
============================================
- Coverage     99.48%   99.31%   -0.17%     
- Complexity     1850     1853       +3     
============================================
  Files           297      297              
  Lines          5828     5846      +18     
============================================
+ Hits           5798     5806       +8     
- Misses           30       40      +10     

Impacted Files	Coverage Δ	Complexity Δ
src/Controller/IndexController.php	75.00% <50.00%> (-25.00%)	3.00 <1.00> (+1.00)	⬇️
src/Controller/RegistrationController.php	90.90% <50.00%> (-9.10%)	11.00 <1.00> (+1.00)	⬇️
src/Controller/Organization/MembersController.php	95.83% <57.14%> (-4.17%)	15.00 <1.00> (+1.00)	⬇️
src/Controller/SecurityController.php	100.00% <100.00%> (ø)	10.00 <3.00> (ø)

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[noniagriconomie]

@akondas PR rebased and comment addressed for the security access control

[akondas]

Thanks @noniagriconomie 🙏