pidgin/pidgin

Clean up some issues with the desktop files and purple3-url-handler

2021-02-27, Gary Kramlich
4682777df311
Clean up some issues with the desktop files and purple3-url-handler

Testing Done:
Ran meson locally verified files were created and proper-enough.

Reviewed at https://reviews.imfreedom.org/r/532/
syntax: glob
.*.swp
.DS_Store
.flatpak-builder
*.pyc
*~
\#*\#
subprojects/*/
syntax: regexp
^build(.+)?\/
win32-install-dir(\.release)?
po\/pidgin\.pot$