Update Octicons to v10 (#12240)

* Update Octicons to v10

Besides a few renames, these icons are no longer present in v10 that we've
used, so had to change:

file-symlink-directory -> file-submodule
internal-repo -> repo
repo-force-push -> repo-push
repo-template-private -> repo-template

Fixes: https://github.com/go-gitea/gitea/issues/11889
Ref: https://github.com/primer/octicons/releases/tag/v10.0.0

* add custom sliders svg for removed octicon-settings

* apply suggestion

* fix triangles and use play on admin dashboard

* add custom mirror svg

* add missing build files

* unify custom svgs

* move to octicon-repo-clone to gitea-mirror

* use octicon-x on conflicts

* tweak timeline icons

* tweak comment buttons

* update settings icon to octicons v1

* switch to octicon-mirror and octicon-tools

* replace two wiki buttons with octicons

* remove whitespace in svg sources

* Fix filepath basename on Windows for SVG bindata (#12241)

* move octicons to devDependencies

* move back to dependencies

* move svgo to devDependencies again

Co-authored-by: Cirno the Strongest <1447794+CirnoT@users.noreply.github.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

public/img/svg/octicon-eye-closed.svg

@@ -1 +1 @@
-<svg viewBox="0 0 16 14" class="svg octicon-eye-closed" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M14.822.854a.5.5 0 10-.707-.708l-2.11 2.11C10.89 1.483 9.565.926 8.06.926c-5.06 0-8.06 6-8.06 6s1.162 2.323 3.258 4.078l-2.064 2.065a.5.5 0 10.707.707L14.822.854zM4.86 9.403L6.292 7.97A1.999 1.999 0 016 6.925c0-1.11.89-2 2-2 .384 0 .741.106 1.045.292l1.433-1.433A3.98 3.98 0 008 2.925c-2.2 0-4 1.8-4 4 0 .938.321 1.798.859 2.478zm7.005-3.514l1.993-1.992A14.873 14.873 0 0116 6.925s-3 6-7.94 6a6.609 6.609 0 01-2.661-.57l1.565-1.566c.33.089.678.136 1.036.136 2.22 0 4-1.78 4-4 0-.358-.047-.705-.136-1.036zM9.338 8.415l.152-.151a1.996 1.996 0 01-.152.151z"/></svg>
+<svg viewBox="0 0 16 16" class="svg octicon-eye-closed" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M.143 2.31a.75.75 0 011.047-.167l14.5 10.5a.75.75 0 11-.88 1.214l-2.248-1.628C11.346 13.19 9.792 14 8 14c-1.981 0-3.67-.992-4.933-2.078C1.797 10.832.88 9.577.43 8.9a1.618 1.618 0 010-1.797c.353-.533.995-1.42 1.868-2.305L.31 3.357A.75.75 0 01.143 2.31zm3.386 3.378a14.21 14.21 0 00-1.85 2.244.12.12 0 00-.022.068c0 .021.006.045.022.068.412.621 1.242 1.75 2.366 2.717C5.175 11.758 6.527 12.5 8 12.5c1.195 0 2.31-.488 3.29-1.191L9.063 9.695A2 2 0 016.058 7.52l-2.53-1.832zM8 3.5c-.516 0-1.017.09-1.499.251a.75.75 0 11-.473-1.423A6.23 6.23 0 018 2c1.981 0 3.67.992 4.933 2.078 1.27 1.091 2.187 2.345 2.637 3.023a1.619 1.619 0 010 1.798c-.11.166-.248.365-.41.587a.75.75 0 11-1.21-.887c.148-.201.272-.382.371-.53a.119.119 0 000-.137c-.412-.621-1.242-1.75-2.366-2.717C10.825 4.242 9.473 3.5 8 3.5z"/></svg>