Also implemented a new weight counting for tags.

In addition, the dialogue for managing the theme cloud was improved,
as the old format of the comment data was used there and bugs occurred.

[Ticket: #638][Ticket: #639]

[Ticket: #636][Ticket: #633]

[Ticket: #630][Ticket: #631][Ticket: #632]

[Ticket: #615]

[Ticket: #626]

[Ticket: #623]

[Ticket: #624]

A number of bugs have been reported,
some of which this commit should fix.

[Ticket: #617][Ticket: #620][Ticket: #621]
[Ticket: #622]

set the link of the feedback room to the room, since the question list can no longer be accessed directly