Comments: Load more comments when JS is disabled

[ChunkyProgrammer]

This PR allows for comments to be opened in a new page when viewing repleis/fetching more comments.

Tests (tests written for when JS is disabled but it should probably also be tested with JS enabled for regression testing)

Video comments

• go to a video page
• scroll to comments
• click load comments
• scroll back to comments
• click on view reply on a comment (a new page opens with the repleis)
• click on Load more (a new page opens with the next page of comments)
• click on the YT link of a comment to make sure the comment that is highlighted is correct

Community:

• go to a channel page
• go on the community tab
• click load more
• see list of comments
• click on the YT link of a comment to make sure the comment that is highlighted is correct

Community:

• go to a channel page
• go on the community tab
• clcik view replies
• click load comments
• click view replies
• a new page opens with replies
• click load more on the new page
• go back to the previous page and click load more
• click on the YT link of a comment and make sure that the comment that is highlighted is correct

closes #409
#341