Add keywords to .desktop file

[Alexander-Wilms]

Problem description

This adds a list of strings which may be used in addition to other metadata to describe the application. This can be useful e.g. to facilitate searching through entries.

Reference: https://webcache.googleusercontent.com/search?q=cache:https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html

(The original site is currently down due to a Gitlab upgrade)

These keywords are used by Flathub, KDE Discover and Gnome Software.

Implementation description

Add a Keywords entry to the .desktop file.

Screenshots

Here's how the tags are displayed for TeXstudio on its Flathub page:

Additional things

[WerWolv]

Thanks a lot!