Fix #6937
Fix #6837
Fix #6667

Do not touch statuses_count on accounts table when mass-destroying
statuses to reduce load when removing accounts, same for
reblogs_count and favourites_count

Do not count statuses with direct visibility in statuses_count

Fix #828

Port 86efccce2a to glitch-soc

Port 45c9f16f71 to glitch-soc

Port dafd7afc5e to glitch-soc

Port b1938d7853 to glitch-soc

Port 66359ec522 to glitch-soc

Port 306267dbd2 to glitch-soc

Port 0ba49eca8b to glitch-soc

Port 3523aa440b to glitch-soc

Port 2f3ac14a43 to glitch-soc

Port cbf97c03bb to glitch-soc

Port 9a1a55ce52 to glitch-soc

This fixes below bugs:

* addReply() had used native compare operator for string ids
  => descendants may appears at wrong position
* CONTEXT_FETCH_SUCCESS had added the focused status as the reply of the *first* status in ancestors, not last status.
  => descendants may also appears wrong position as well as correct position
* TIMELINE_UPDATE had added the status to replies of *itself* instead of replied status
  => browser will hangs if you open the status due to a circular reference

Merge upstream changes

Fix #7659

Fix #7660

* optimize direct timeline

* fix typo in class name

* change filter condition for direct timeline

* fix codestyle issue

* revoke index_accounts_not_silenced because direct timeline does not use it.

* revoke index_accounts_not_silenced because direct timeline does not use it.

* fix rspec test condition.

* fix rspec test condition.

* fix rspec test condition.

* revoke adding column and partial index

* (direct timeline) move merging logic to model

* fix pagination parameter

* add method arguments that switches return array of status or cache_ids

* fix order by

* returns ActiveRecord.Relation in default behavor

* fix codestyle issue

* Track trending tags

- Half-life of 1 day
- Historical usage in daily buckets (last 7 days stored)
- GET /api/v1/trends

Fix #271

* Add trends to web UI

* Don't render compose form on search route, adjust search results header

* Disqualify tag from trends if it's in disallowed hashtags setting

* Count distinct accounts using tag, ignore silenced accounts

Port b0664a5e6c to glitch-soc

Port missing part of 6ae70a92c9 to glitch-soc

Port fa04945365 to glitch-soc

Port missing changes from 4e4f1b0dcb to glitch-soc

Port 0128b86d30 to glitch-soc

Merge upstream changes

Conflicts:
	config/locales/ca.yml
	config/locales/nl.yml
	config/locales/oc.yml
	config/locales/pt-BR.yml

Resolved conflicts by removing upstream-specific changes

Original patch by @j-a4

Fix #7627

Fix caret position after inserting suggestions