So IDNs are not rejected. Invalid server names will be caught later.

Something is still wrong on shutdown, need to debug that.
And CI will fail.

* add username error label, add word wrapping for error labels

* make lint

* last commits

* remove font, and remove some lambdas

* add QRegularExpression for regex

* improve review things

* add isModified() for checkFields()

* add check isModified() for  all fields in checkFields

* Update src/RegisterPage.cpp

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

* remove emit call for showError

Co-authored-by: DeepBlueV7.X <nicolas.werner@hotmail.de>

fixes #214

fixes #97
fixes #51

- Run the linter
- Explicitly use cmake for installing olm

- Patch the olm repo with a CMakeLists.txt file

fixes #264

The color scheme of nheko obeys the default color theme of Qt
(i.e. the system theme). It uses a Qt stylesheet to accomplish this,
which means replacing the color theme with a custom theme would only
be a matter of writing a new style sheet and loading it into the app.