Add dependency to build instructions for Fedora 36

When I first tried to build using the included instructions (on Fedora 36), CMake failed, complaining about a missing `I18n`. So, I just looked for packages with similar names that have fitting descriptions. `kf5-ki18n-devel` was the first one that I tried because the description seemed really promising. CMake immediately was able to continue and Latte Dock finished building and installing successfully. It also functions exactly as expected now.

This small addition to the dependency installation command should reduce the speed bumps for Fedora users.

INSTALLATION.md

@@ -30,7 +30,7 @@ sudo pacman -S cmake extra-cmake-modules python plasma-framework plasma-desktop
 
 ### Fedora/RHEL
 ```
-sudo dnf install cmake extra-cmake-modules qt5-qtdeclarative-devel qt5-qtx11extras-devel kf5-kiconthemes-devel kf5-plasma-devel kf5-kwindowsystem-devel kf5-kdeclarative-devel kf5-kxmlgui-devel kf5-kactivities-devel gcc-c++ gcc xcb-util-devel kf5-kwayland-devel git gettext kf5-karchive-devel kf5-knotifications-devel libSM-devel kf5-kcrash-devel kf5-knewstuff-devel kf5-kdbusaddons-devel kf5-kxmlgui-devel kf5-kglobalaccel-devel kf5-kio-devel kf5-kguiaddons-devel kf5-kirigami2-devel kf5-kirigami-devel qt5-qtwayland-devel plasma-wayland-protocols-devel wayland-devel
+sudo dnf install cmake extra-cmake-modules qt5-qtdeclarative-devel qt5-qtx11extras-devel kf5-kiconthemes-devel kf5-plasma-devel kf5-kwindowsystem-devel kf5-kdeclarative-devel kf5-kxmlgui-devel kf5-kactivities-devel gcc-c++ gcc xcb-util-devel kf5-kwayland-devel git gettext kf5-karchive-devel kf5-knotifications-devel libSM-devel kf5-kcrash-devel kf5-knewstuff-devel kf5-kdbusaddons-devel kf5-kxmlgui-devel kf5-kglobalaccel-devel kf5-kio-devel kf5-kguiaddons-devel kf5-kirigami2-devel kf5-kirigami-devel kf5-ki18n-devel qt5-qtwayland-devel plasma-wayland-protocols-devel wayland-devel
 ``` 
 
 ### Building and Installing