add linux audio screensharing (#130)

Co-authored-by: V <vendicated@riseup.net>
Co-authored-by: kaitlynkitty <87152313+kaitlynkittyy@users.noreply.github.com>
Co-authored-by: Curve <fynnbwdt@gmail.com>

src/shared/IpcEvents.ts

@@ -42,5 +42,10 @@ export const enum IpcEvents {
     ENABLE_AUTOSTART = "VCD_ENABLE_AUTOSTART",
     DISABLE_AUTOSTART = "VCD_DISABLE_AUTOSTART",
 
+    VIRT_MIC_LIST = "VCD_VIRT_MIC_LIST",
+    VIRT_MIC_START = "VCD_VIRT_MIC_START",
+    VIRT_MIC_START_SYSTEM = "VCD_VIRT_MIC_START_ALL",
+    VIRT_MIC_STOP = "VCD_VIRT_MIC_STOP",
+
     ARRPC_ACTIVITY = "VCD_ARRPC_ACTIVITY"
 }