Command UI fixes * Fix memory leak in Command UI * Stop refreshing command list on every UI refresh (This was causing the tab bar to flash on Gajim contacts, for example) * Never hide the Command UI during an active session * Allow text selection in Command UI tables * Show desc text on Command UI embedded webview, when present Also: * Always show name of sender in global message search results * Monochrome version of icon for use with Android 13 themed icons * Several crash fixes