US2 - Ensure that anonymous posts are displayed annonymously

[shantinghou]

What

Ensure that anonymous posts are displayed anonymously both on categories page and topics page.

Why

Complete issue 3 for user story 2. close #15. This feature completes the full flow of making anonymous posts on the nodebb site.

How

Changes were made in both front-end and backend to read topics and posts data. An anonymous profile was added to easily construct the profile in the frontend whenever anonymous was set to true.

Schema Changes

The schema for posts and topics were updated as I added a IsAnonymous field to the structs so that I could pass information on whether a post was anonymous while still tying the post to the user.

Displaying user profile (Front-end)

The public/src/modules/helpers.common.js file was modified as that is where the logic for displaying user profiles are handled. Therefore, the function buildAvatar now takes in additional, optional fields that will indicate whether the avatar should be anonymous or not.
As a result, node_modules/nodebb-theme-harmony/templates/partials/topics_list.tpl and node_modules/nodebb-theme-harmony/templates/partials/topic/post.tpl front-end files were modified to take in the additional fields.

Testing

No testing were made yet other than from testing the front end locally and via logs.

Screenshots

Works on both category pages (for topics) and topic pages

[coveralls]

Pull Request Test Coverage Report for Build 11016864107

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 11 of 14 (78.57%) changed or added relevant lines in 4 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.01%) to 82.674%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
public/src/modules/helpers.common.js	8	11	72.73%

Files with Coverage Reduction	New Missed Lines	%
src/meta/errors.js	1	76.74%

Totals
Change from base Build 10985466755:	-0.01%
Covered Lines:	22337
Relevant Lines:	25596

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💛 - Coveralls

[guanjiecheng]

LGTM