Add explicit default font option

Fix build with fmt 10.1.0

I have no idea whether this is a fmt bug, and if this isn't a fmt bug how did this work before, but oh well...

Remove some unnecessary forward declarations and headers

Show an indicator in the timeline for mods and admins

QML the fallback auth dialog

Use mipmap on custom reactions

Add mark room as read option

Fix some errors given by GCC

Currently translated at 100.0% (1000 of 1000 strings)

Translated using Weblate (Chinese (Simplified))

Currently translated at 100.0% (1000 of 1000 strings)

Co-authored-by: Integral <integral@murena.io>
Co-authored-by: Poesty Li <poesty7450@gmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/zh_Hans/
Translation: Nheko/nheko

Currently translated at 92.6% (926 of 1000 strings)

Co-authored-by: Jaron Viëtor <jaron@v8or.nl>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/nl/
Translation: Nheko/nheko

Currently translated at 0.5% (5 of 1000 strings)

Co-authored-by: Farooq Karimi Zadeh <fkz@riseup.net>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fa/
Translation: Nheko/nheko

Co-authored-by: Farooq Karimi Zadeh <fkz@riseup.net>

Currently translated at 96.1% (961 of 1000 strings)

Translated using Weblate (Chinese (Simplified))

Currently translated at 96.1% (961 of 1000 strings)

Co-authored-by: Integral <integral@murena.io>
Co-authored-by: Poesty Li <poesty7450@gmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/zh_Hans/
Translation: Nheko/nheko

Currently translated at 92.5% (925 of 1000 strings)

Co-authored-by: Integral <integral@murena.io>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/zh_Hans/
Translation: Nheko/nheko

Currently translated at 100.0% (1000 of 1000 strings)

Co-authored-by: Linerly <linerly@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/id/
Translation: Nheko/nheko

Currently translated at 100.0% (1000 of 1000 strings)

Co-authored-by: Priit Jõerüüt <nhkwlate@joeruut.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/et/
Translation: Nheko/nheko