irc: show current buffer after (re)init to avoid needing manual switch; preload history on open

Signed-off-by: Slendi <slendi@socopon.com>

main.lua

@@ -88,6 +88,13 @@ function IrcChatView:init(reinit)
     end
     self:updateTitle()
     TextViewer.init(self, reinit)
+    -- Ensure current buffer content is shown immediately after (re)init
+    local tgt = self._current_target or "*"
+    self:preloadHistory(tgt)
+    if self.scroll_text_w and self.scroll_text_w.text_widget then
+        self.scroll_text_w.text_widget:setText(self._buffers[tgt] or "")
+        self.scroll_text_w:scrollToBottom()
+    end
     -- Start connection after UI init so we can show logs
     UIManager:nextTick(function() self:startConnection() end)
 end