chatgui: clean up log — remove spam, move messages to proper categories

A-B: Remove gui_bridge_post_uasync_fn log, MainWindow::onMessageReceived, InputBar send text
B1: Move lifecycle messages to GENERAL (utun_node, main, mainwindow, animtimer, sound_manager, messagelist, db_manager)
B2: Move chat events to CHAT_SYNC (MSG_RECEIVED, CHANNEL_UPDATED, CHANNEL_PEERS_ONLINE, DB_READY)
B3: Move peer/connect events to MEMBER_SYNC (CONNECT_RESULT, NEW_PEER, AUTO_CONNECT, NODE_CHANGED)
C: Lower level of C-side spam (recalc, send OK, PUSH ACK, connect_channel) INFO->DEBUG
D: Fix duplicate PUSH log line in db_sync.c
E: Add debounce to CHANNEL_PEERS_ONLINE — log only on change
Misc: Remove sort=0 from ChannelList::loadChannels, improve DB_READY message

tools/chatgui/db/db_manager.cpp

@@ -79,7 +79,7 @@ DbManager::~DbManager() {
     for (auto it = m_cursors.begin(); it != m_cursors.end(); ++it)
         sqlite3_finalize(it.value());
     m_cursors.clear();
-    DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "DbManager: destroyed");
+    DEBUG_INFO(DEBUG_CATEGORY_GENERAL, "DbManager: destroyed");
 }
 
 sqlite3_stmt* DbManager::prepareOrNull(const char* sql) const {