google-chat-linux: allar útgáfur og eldri útgáfur

Minor fix : ellipsis too long notification messages.

Huge improvements with native notifications support, including message preview. See doc in README.

'Quit' behaviour changes.
When using systray : things go on as previously, (including latest improvements especially for KDE quitting)
When not using systray, closing window also quits entirely the app. (So, 'Super+Q' on COSMIC or 'Alt F4' elsewhere maybe will indeed Quit)
This is coherent with other great chat apps behaviour, and consistent accrosse DE.
Thanks again to @Adiker ... I guess I found a future maintainer for the day I quit google for good ;)

Minor additional KDE quit fix.

Improve Shutdown : now app properly closes when system powers off, thanks to @Adiker !
Fix downloads experience : no more empty window appearing. @Adiker again :)

Add native notification support (with toggle to disable it if needed). Thanks to @Adiker.

Fix try icon after Google canged their names again.
Several dependencies vulnerability fixes.

Bump to electron 39.0 as maintainance chore.
Add option (in View menu) to disable use of Tray icon, as it's becoming useless (and painful) in some DE, for instance Cosmic.

bump electron to 29 with better wayland support. Define ELECTRON_OZONE_PLATFORM_HINT=auto to take advantage of it. Values can be auto, wayland, x11, with auto being a reasonable default.
Set it in .zshenv for instance, and logout / login again. Must be in a placed sourced when .desktop applications launchers are used, will certainly be DE dependant.

empty releases for AUR packaging fix only

empty releases for AUR packaging fix only

Add a menu in 'View' to change tray icon theme.

Add support for several iconThemes, to match some 'monochrome' desktop themes. 3 values are supported:
- default : the good old green ones
- colored : the new colored google ones
- mono : an attempt at monochrome icon theme
Edit ~/.config/google-hangouts-chat-linux.json and set "iconTheme":"colored" for instance, then restart.
No GUI setting for now.

Fix systray notification (favicon name changed on google side) see #87

Add a nice pseudo-protocol support: open gchat:// urls in client instead of browser. (requires configutaion in browsers)
See README.md "Open Google Chat URLs from web browser in the app".

fix #82 build rpm phase by adding fpm dependency, fix output file names, separate checksum files to make sure AUR scripts wont fail on Arch packaging system

Update electron to 27.0.3 #78

prepare 5.24.22-1 version with fix for #62 and electron update to 24.8.5

fix #69 : download of attached files in messages was broken by #67

new version with npm fix

fix #67 : prevent several instances from running simultaneaously

fix #66 clean MORE links from google-added-decorations before opening them

Issue #65 : fix open links in external browser

Fix #40 : client breaks out to browser when login needed.