Bug 488548

SUMMARY
When sending text to a Wayland desktop using the "Compose send" option of the remote input plugin, the text that is received will be lowercase, regardless of the case used when sending the text.

STEPS TO REPRODUCE
1. On an Android device (although others probably work as well), connect to a desktop machine running Wayland
2. Navigate to "Remote input" and make sure that the active window on the desktop machine accepts text input (e.g., a terminal, Kate, etc)
3. Go to "Compose send" and send a message to the desktop machine which includes uppercase characters, such as `sudo pacman -Syu`

OBSERVED RESULT
The text received by the desktop is entirely lowercase (e.g., `sudo pacman -syu`).

EXPECTED RESULT
The text received by the desktop should match the case used when sent.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
I am not at all knowledgeable with the KDE codebase, but I noticed that there is a `.toLower()` on line 266 in waylandremoteinput.cpp which caught my eye (link here: https://invent.kde.org/network/kdeconnect-kde/-/blob/master/plugins/mousepad/waylandremoteinput.cpp#L266). Is that intended, or might that be what's causing this issue?