feat: add support for custom favicons (#4770)

* feat: add support for custom favicons

* Commit updated API documentation

* chore(i18n): add localization of text

* fix(js): regenerate package lock file

* chore(test): add favicon test

* fix: max size not respected

* Commit updated API documentation

* fix: move favicon.ico to the static dir

* fix: fix tests

* fix: remove hard-coded content-type of icon

* chore: update extracted translations

* feat(admin): add support for resetting to default icon

* chore: use a higher res default favicon

* Commit updated API documentation

---------

Co-authored-by: Owncast <owncast@owncast.online>

static/web/img/favicon/browserconfig.xml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<browserconfig><msapplication><tile><square70x70logo src="/ms-icon-70x70.png"/><square150x150logo src="/ms-icon-150x150.png"/><square310x310logo src="/ms-icon-310x310.png"/><TileColor>#ffffff</TileColor></tile></msapplication></browserconfig>