* Added escape handler for uploads

* Update MessageView.qml

Changed if-else conditions to handle only one escape at a time

Currently translated at 100.0% (772 of 772 strings)

Co-authored-by: Lurkki14 <jussi.kuokkanen@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fi/
Translation: Nheko/nheko

fixes #1094

fixes #1088

Subtle corrections to paste behaviors

fixes #1098

The cache is only approximate, i.e. it doesn't skip edits and similar,
but this might be good enough? Also no migration right now.

Speeds up startup by about 5x on my system.

Half the startup time is now loading the powerlevels for each room. We
can probably lazily load those too in the future.

Make cursoring up/down more consistent on some setups

Currently translated at 100.0% (772 of 772 strings)

Co-authored-by: Lurkki14 <jussi.kuokkanen@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fi/
Translation: Nheko/nheko

Move dependencies above mtxclient in CMake, add header files to target

Currently translated at 86.0% (664 of 772 strings)

Co-authored-by: Glandos <bugs-github@antipoul.fr>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fr/
Translation: Nheko/nheko

Currently translated at 100.0% (772 of 772 strings)

Translated using Weblate (Finnish)

Currently translated at 100.0% (772 of 772 strings)

Co-authored-by: Aminda Suomalainen <suomalainen+git@mikaela.info>
Co-authored-by: Lurkki14 <jussi.kuokkanen@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fi/
Translation: Nheko/nheko

Currently translated at 100.0% (772 of 772 strings)

Co-authored-by: Lurkki14 <jussi.kuokkanen@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fi/
Translation: Nheko/nheko

Currently translated at 86.0% (664 of 772 strings)

Co-authored-by: Eldred HABERT <stuff@eldred.fr>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fr/
Translation: Nheko/nheko

Currently translated at 84.8% (655 of 772 strings)

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/de/
Translation: Nheko/nheko