feat(audio): Adding shortut SHIFT+` (~ tilde) for muting mic.

src/widget/form/chatform.cpp

@@ -58,6 +58,7 @@
 #include <QScrollBar>
 #include <QSplitter>
 #include <QStringBuilder>
+#include <QShortcut>
 
 #include <cassert>
 
@@ -221,6 +222,9 @@ ChatForm::ChatForm(Profile& profile_, Friend* chatFriend, IChatLog& chatLog_,
     setAcceptDrops(true);
     retranslateUi();
     Translator::registerHandler(std::bind(&ChatForm::retranslateUi, this), this);
+
+    // shortcut for mute (SHIFT+ `), (SHIFT + grave accent, gives tilde)
+    new QShortcut(Qt::SHIFT | 0x60, this, SLOT(onMicMuteShortcutToggle()));
 }
 
 ChatForm::~ChatForm()
@@ -458,6 +462,15 @@ void ChatForm::onMicMuteToggle()
     updateMuteMicButton();
 }
 
+void ChatForm::onMicMuteShortcutToggle()
+{
+    CoreAV* av = core.getAv();
+    if (av->isCallActive(f))
+    {
+        onMicMuteToggle();
+    }
+}
+
 void ChatForm::onVolMuteToggle()
 {
     CoreAV* av = core.getAv();

src/widget/form/chatform.h

@@ -102,6 +102,7 @@ private slots:
     void onAnswerCallTriggered(bool video);
     void onRejectCallTriggered();
     void onMicMuteToggle();
+    void onMicMuteShortcutToggle();
     void onVolMuteToggle();
 
     void onFriendStatusChanged(const ToxPk& friendPk, Status::Status status);