Fix tmux popup title flag for service logs feature

Fix journalctl popup that was failing with 'can't find session' error:

Issue Resolution:
- Change tmux display-popup flag from -t to -T for setting popup title
- -t flag was incorrectly trying to target a session named 'Logs: servicename'
- -T flag correctly sets the popup window title

The J key (Shift+j) service logs feature now works properly, opening
an 80% tmux popup with journalctl -f for real-time log viewing.

Bump version to v0.1.49

Cargo.lock

@@ -270,7 +270,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.47"
+version = "0.1.48"
 dependencies = [
  "anyhow",
  "chrono",
@@ -291,7 +291,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.47"
+version = "0.1.48"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -314,7 +314,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.47"
+version = "0.1.48"
 dependencies = [
  "chrono",
  "serde",