Username can be edited by double clicking on text, added global user profile menu action in user info widget

Use correct syntax for emoji generation script

Fix emoji categories

Currently translated at 48.2% (210 of 435 strings)

Co-authored-by: maxigaz <maxigaz@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/hu/
Translation: Nheko/nheko

fixes #412
fixes #413

Write database to the DataLocation

Add "open in external program" action

Add python 3 to path in appveyor

Get category switching working

Currently translated at 13.3% (58 of 435 strings)

Co-authored-by: vachan-maker <revsamtp@hotmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/ml/
Translation: Nheko/nheko

Currently translated at 35.6% (155 of 435 strings)

Co-authored-by: maxigaz <maxigaz@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/hu/
Translation: Nheko/nheko

Currently translated at 14.2% (62 of 435 strings)

Co-authored-by: Glael <glael@cock.li>
Co-authored-by: Weblate <noreply@weblate.org>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/nl/
Translation: Nheko/nheko

A few small things

Markdown setting override commands