Make "Add Step" button blue

[anthony-zhou]

I changed the "Add Step" button's class from "btn-success" to "btn-primary," to make it blue. This means the "btn-success" CSS rule might no longer be used, but I haven't changed any CSS, in case the "btn-success" class is used elsewhere.
Here is a screenshot:

Note: I also claimed this task on Google Code-in. My Google Code-in username is az.

Fixes #1317

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[welcome]

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[codecov]

Codecov Report

Merging #1331 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1331   +/-   ##
=======================================
  Coverage   32.13%   32.13%           
=======================================
  Files         108      108           
  Lines        1982     1982           
  Branches      292      292           
=======================================
  Hits          637      637           
  Misses       1345     1345

[chen-robert]

Great PR @anthony-zhou, it works for me 😄

Be sure to check out the welcoming post at #6808. You should also make sure that you've completed the installation task for image-sequencer before working on any issues.

Glad to have you here 🎉

[SidharthBansal]

@keshav234156 @jywarren kindly review this.
I am not having any specialism in this repo.

[SidharthBansal]

Glad to have your help @anthony-zhou 🎉

[keshav234156]

@anthony-zhou Changes looks great to me! Can you please also add a screenshot of the button after changes are made.

[anthony-zhou]

@keshav234156 Thanks for the feedback. I have added a screenshot of the button after the changes were made. Let me know if you need anything else!

[keshav234156]

@anthony-zhou Oh great!Nicely done
@jywarren what are your views on this

[anthony-zhou]

@chen-robert Thanks! I successfully installed image-sequencer, so I'll be sure to go complete the installation task as soon as I have completed this one. (Sorry for going out of order; I didn't notice the the welcome post before opening this PR.)

[anthony-zhou]

@publiclab/is-reviewers Would anyone else like to review this PR?

[SidharthBansal]

@harshkhandeparkar please review.

…

On Sun, 8 Dec 2019, 11:33 pm anthony-zhou, ***@***.***> wrote: @publiclab/is-reviewers <https://github.com/orgs/publiclab/teams/is-reviewers> Would anyone else like to review this PR? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#1331?email_source=notifications&email_token=AFAAEQ55ZGN6STHYVKYNCDTQXUZHPA5CNFSM4JW44B3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEGHFFGA#issuecomment-562975384>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFAAEQ3CEL7574AH3F3RC53QXUZHPANCNFSM4JW44B3A> .

[harshkhandeparkar]

Sure. On Sun, 8 Dec, 2019, 11:48 PM Sidharth Bansal, <notifications@github.com> wrote:

…

@harshkhandeparkar please review. On Sun, 8 Dec 2019, 11:33 pm anthony-zhou, ***@***.***> wrote: > @publiclab/is-reviewers > <https://github.com/orgs/publiclab/teams/is-reviewers> Would anyone else > like to review this PR? > > — > You are receiving this because you commented. > Reply to this email directly, view it on GitHub > < #1331?email_source=notifications&email_token=AFAAEQ55ZGN6STHYVKYNCDTQXUZHPA5CNFSM4JW44B3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEGHFFGA#issuecomment-562975384 >, > or unsubscribe > < https://github.com/notifications/unsubscribe-auth/AFAAEQ3CEL7574AH3F3RC53QXUZHPANCNFSM4JW44B3A > > . > — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1331?email_source=notifications&email_token=AIJI5H3NVKZEX5Z5DO5B2WDQXU3APA5CNFSM4JW44B3KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEGHFSCQ#issuecomment-562977034>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIJI5H4ZSJ27WBJMEHDBMQTQXU3APANCNFSM4JW44B3A> .

[harshkhandeparkar]

LGTM 👍

[harshkhandeparkar]

Well done!

[harshkhandeparkar]

@jywarren this can be merged.

[welcome]

Congrats on merging your first pull request! 🙌🎉⚡️
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[jywarren]

Thanks all!