This PR do some performance optimzations.
- [x] Add `index` for the column `comment_id` of `Attachment` table to
accelerate query from the database.
- [x] Remove unnecessary database queries when viewing issues. Before
some conditions which id = 0 will be sent to the database
- [x] Remove duplicated load posters
- [x] Batch loading attachements, isread of comments on viewing issue
---------
Co-authored-by: Zettat123 <zettat123@gmail.com>
Conflicts:
models/issues/comment_code.go: function was renamed in Forgejo
models/migrations/migrations.go: migration already ported
Fix: [#29933](https://github.com/go-gitea/gitea/issues/29933)
**Before**

**After**

---------
Co-authored-by: silverwind <me@silverwind.io>
Conflicts:
- web_src/css/modules/segment.css
Ported by adding the new selector with a larger radius,
keeping the existing one with ours.
Fix regression from https://github.com/go-gitea/gitea/pull/30194 where
right-aligned items would not display correctly.
Before and After:
<img width="285" alt="Screenshot 2024-04-06 at 01 12 11"
src="f9168db5-0f69-4b5d-ba17-b60145ac4a09">
<img width="285" alt="Screenshot 2024-04-06 at 01 11 49"
src="639ab6ed-d018-4e3a-9980-1f079e4ebe9d">
Frontpage search tweaked to accommodate (which was the reason for the
changes that broken above):
<img width="445" alt="Screenshot 2024-04-06 at 01 11 34"
src="1919220b-390e-463a-8e3d-33a3556bf111">
<img width="438" alt="Screenshot 2024-04-06 at 01 11 39"
src="fd94f8e4-1d56-4b04-99e3-1cd240bd7ab4">
(cherry picked from commit 94aad35a120b05897a0b6b97f0d9605a52ea9642)
Likely still some unnecessary CSS but any combinations with the `ui
list` classes are covered. There was only on instance of `horizontal
list` which I removed. It was this part of the commit page:
<img width="396" alt="image"
src="c49ec4f5-93c3-41d6-a907-cdbedf8abc44">
(cherry picked from commit 649aada3664f5adccdaecc7dd24b8252ae070220)
1. Distinguish inline an block code with new CSS variable
`--color-markup-code-inline`
2. Various color tweaks, better contrast from background
<img width="447" alt="Screenshot 2024-04-05 at 00 51 00"
src="93e069f4-6807-4f2c-9331-2d69730919d4">
<img width="456" alt="Screenshot 2024-04-05 at 00 50 44"
src="0dc9c745-c531-40fa-94ec-b0ba10bd7ccf">
(cherry picked from commit 662eb4b0852f9ce2c161e7fea5ac66bf912fc9f6)
As in commits page we show the author of the commit in the commits
dropdown and not the committer.
Commits Page:

and the same contents in our dropdown:

fixes#29588
(cherry picked from commit 07bcfc171bcccfe78a86c7b4b3f9b729ba7d60b6)
This allows you to hide the "Powered by" text in footer via
`SHOW_FOOTER_POWERED_BY` flag in configuration.
---------
Co-authored-by: silverwind <me@silverwind.io>
(cherry picked from commit 609a627a44dbcb7b630ff51ce9f4b9f448b48ca8)
Conflicts:
- docs/content/administration/config-cheat-sheet.en-us.md
- docs/content/administration/config-cheat-sheet.zh-cn.md
Removed both, they're Gitea specific.
- templates/base/footer_content.tmpl
Applied the change manually, keeping the Forgejo footer.
Found [a better color
picker](https://github.com/web-padawan/vanilla-colorful) that [does not
rely](https://github.com/mdbassit/Coloris/issues/139) on
`querySelectorAll` or a global shared instance, and is also around a
third of the size of the previous one.
The popover is handled by tippy.js for which I introduced a new "bare"
theme and it uses a new sibling-based mechanism which should prove
useful later to create tippy popovers via HTML only.
<img width="846" alt="Screenshot 2024-03-31 at 04 03 38"
src="7639b911-a2d7-4f5c-bffd-a9d84561e747">
(cherry picked from commit 1195be41a13d2198ab644c8558549edd74485510)
- Inline math blocks couldn't be preceeded or succeeded by
alphanumerical characters due to changes introduced in PR #21171.
Removed the condition that caused this (precedingCharacter condition)
and added a new exit condition of the for-loop that checks if a specific
'$' was escaped using '\' so that the math expression can be rendered as
intended.
- Additionally this PR fixes another bug where math blocks of the type
'$xyz$abc$' where the dollar sign was not escaped by the user, generated
an error (shown in the screenshots below)
- Altered the tests to accomodate for the changes
Former behaviour (from try.gitea.io):

Fixed behaviour (from my local build):

(Edit) Source code for the README.md file:
```
$x$ -$x$ $x$-
a$xa$ $xa$a 1$xb$ $xb$1
$a a$b b$
a$b $a a$b b$
$a a\$b b$
```
---------
Signed-off-by: João Tiago <joao.leal.tintas@tecnico.ulisboa.pt>
Co-authored-by: Giteabot <teabot@gitea.io>
(cherry picked from commit e006451ab1509f8d6d43c5974387c05b26517392)
Fixes#30235
If the key id "front" byte has a single digit, `%X` is missing the 0
prefix.
` 38D1A3EADDBEA9C` instead of
`038D1A3EADDBEA9C`
When using the `IssuerFingerprint` slice `%X` is enough but I changed it
to `%016X` too to be consistent.
(cherry picked from commit eb505b128c7b9b2459f2a5d20b5740017125178b)
Conflicts:
- models/asymkey/gpg_key_commit_verification.go
Ported the change to models/asymkey/gpg_key_object_verification.go
Create a new `issue-navbar` class specifically for this bar, previous
class used in many places and I thought I had them all removed, but not
this one.
Fixes: https://github.com/go-gitea/gitea/issues/30226
(cherry picked from commit 944c76e78423405a33450eb3d07cd2b772f4a81c)