keyboard: Number and Digit entry level has missing enter icon and other missing keys
When entry field purpose is defined as GTK_INPUT_PURPOSE_NUMBER and GTK_INPUT_PURPOSE_DIGITS enter key icon is missing.
<entry name="number" value="3" summary="input a number (including decimal separator and sign)"/>
so when purpose is number the layout should also include dot,comma,minus,plus (both comma and dot instead of choosing one depending on the language setting because for example i would imagine one would set purpose to number for comma separated list of dns ip numbers)
Attached you can find my test code which you can compile with
gcc `pkg-config --cflags gtk+-3.0` -o on-screen-keyboard-test on-screen-keyboard-test.c `pkg-config --libs gtk+-3.0`
I will be sending a merge request to fix soon.