Show the remote session indicator only during a remote session (#14981)

Hovering the indicators revealed it dimmed alongside the ones that can be
switched on, though there is nothing to do with it there. An indicator can
now opt out of that reveal, and remote session does.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

shell/Ui/BarIndicator.qml

@@ -13,9 +13,12 @@ BarIconButton {
   property string indicatorBlock: "single"
   property var indicatorHost: null
   property var activeOverride: null
+  // An indicator with nothing to turn on, such as a remote session, shows only
+  // while it is active, never among the inactive ones a hover reveals.
+  property bool revealWhenInactive: true
   readonly property bool effectiveActive: activeOverride === null || activeOverride === undefined ? active : activeOverride === true
-  readonly property bool belongsInBlock: indicatorBlock === "active" ? effectiveActive : (indicatorBlock === "inactive" ? !effectiveActive : true)
-  readonly property bool inactiveRevealed: !effectiveActive && !!indicatorHost && indicatorHost.revealInactiveIndicators
+  readonly property bool belongsInBlock: indicatorBlock === "active" ? effectiveActive : (indicatorBlock === "inactive" ? !effectiveActive && revealWhenInactive : true)
+  readonly property bool inactiveRevealed: !effectiveActive && revealWhenInactive && !!indicatorHost && indicatorHost.revealInactiveIndicators
 
   function extractData(raw) {
     return Util.parseModuleJson(raw)

shell/plugins/bar/indicators/RemoteSession.qml

@@ -10,11 +10,10 @@ BarIndicator {
 
   active: remoteSessionService ? remoteSessionService.active : false
   activeText: "󰢹"
-  inactiveText: "󰢹"
   activeTooltipText: peers.length > 0 ? "Remote session from " + peers.join(", ") : "Remote session"
-  inactiveTooltipText: "Remote Session"
   useActiveColor: true
   activeColor: Commons.Color.urgent
+  revealWhenInactive: false
 
   Connections {
     target: root.indicatorHost