Changelog:

* Implementing simple SSH multi factor authentication. [!2162](Remmina/Remmina!2162) *@antenore*
* Implementing dynamic resolution in SPICE plugin [!2150](Remmina/Remmina!2150) *@hadogenes*
* rdp/cliprdr: Fix header of FormatList message [!2147](Remmina/Remmina!2147) *@pnowack*
* rdp/event: Fix wheel value for GDK_SCROLL_DOWN events [!2149](Remmina/Remmina!2149) *@pnowack*
* Resolve "Remmina does not handle `file:///some/path/to/file.rdp` syntax" [!2152](Remmina/Remmina!2152) *@antenore*
* Resolve "SSH tunneling, honoring ssh_config (User, HostKeyAlias, ProxyJump, HostKeyAlgorithms, IdentitiesOnly, etc.)" [!2154](Remmina/Remmina!2154) *@antenore*
* Resolve "While in the main window, bind F10 keyboard shortcut to toggling the main menubutton" [!2156](Remmina/Remmina!2156) *@antenore*
* Add capability to load Python plugins (not finished). [!2157](Remmina/Remmina!2157) *@ToolsDevler*
* Disabling Python support by default [!2158](Remmina/Remmina!2158) *@antenore*
* Suppress Output PDU when the RDP window is not visible [!2159](Remmina/Remmina!2159) *@antenore*
* Refactoring SSH plugin [!2160](Remmina/Remmina!2160) *@antenore*
* Spelling: SGR 1 attribute colour and bold switching [!2163](Remmina/Remmina!2163) *@kingu*
* Remove extra parenthesis [!2164](Remmina/Remmina!2164) *@yurchor*
* Spice option to choose Prefered Video Codec and Image Compressor [!2165](Remmina/Remmina!2165) *@hadogenes*
* Spelling: Protocol info and view strings reworked [!2166](Remmina/Remmina!2166) *@kingu*
* Spelling: Server name placeholder moved [!2167](Remmina/Remmina!2167) *@kingu*
* Spelling: Glade [!2170](Remmina/Remmina!2170) *@kingu*
* Spelling: Start-up [!2171](Remmina/Remmina!2171) *@kingu*
* Spelling: ISO, date and time [!2172](Remmina/Remmina!2172) *@kingu*
* Spelling: Auto-start, auto-scroll, auto-detect [!2173](Remmina/Remmina!2173) *@kingu*
* Spelling: Colour, could not, turn off, don't send [!2168](Remmina/Remmina!2168) *@kingu*
* Spelling: SSH key, first, checksum of, either [!2169](Remmina/Remmina!2169) *@kingu*
* Correct iterating lines in string - address sanitizer fix #2390 [!2174](Remmina/Remmina!2174) *@hadogenes*
* Correct freeing memory in spice [!2175](Remmina/Remmina!2175) *@hadogenes*
* Issue/2391 randomness [!2176](Remmina/Remmina!2176) *@antenore*
* Resolve "Missing keyboard shortcuts to toggle search (Ctrl+F, Escape), and closing the search doesn't clear the search" [!2179](Remmina/Remmina!2179) *@antenore*
* Resolve "Always false contition in remmina_ssh.c" [!2180](Remmina/Remmina!2180) *@antenore*
* Improving error detection [!2181](Remmina/Remmina!2181) *@antenore*
* Using curly double quotes where possible [!2182](Remmina/Remmina!2182) *@antenore*
* Spelling: SPICE, GStreamer, No, video-codec error [!2183](Remmina/Remmina!2183) *@kingu*
* Command line help improvements [!2185](Remmina/Remmina!2185) *@antenore*
* Fix minor typo [!2186](Remmina/Remmina!2186) *@yurchor*
* Small typos fixed [!2187](Remmina/Remmina!2187) *@kingu*
* Resolve "Remmina Crashes when opening the preferences with the accelerator" [!2189](Remmina/Remmina!2189) *@antenore*
* Fixing #2401 - crash when using ctrl+p [!2190](Remmina/Remmina!2190) *@antenore*
* Refactoring the RCW toolbar to use the right tool items types [!2188](Remmina/Remmina!2188

) *@antenore*

Signed-off-by: Antenore Gatta <antenore@simbiosi.org>