Update .tmuxp.json/yaml workspace files.

Author: tony

.tmuxp.json

@@ -10,11 +10,7 @@
           ], 
           "focus": true
         }, 
-        {
-          "shell_command": [
-            "echo hi"
-          ]
-        }, 
+        "pane",
         {
           "shell_command": [
             "command -v .env/bin/tmuxp >/dev/null 2>&1 || { pip install -e .; }", 

.tmuxp.yaml

@@ -16,8 +16,7 @@ windows:
     - vim
     - :Ex
     focus: true
-  - shell_command: 
-    - echo hi
+  - pane 
   - shell_command: 
     - command -v .env/bin/tmuxp >/dev/null 2>&1 || { pip install -e .; }
     - command -v watching_testrunner >/dev/null 2>&1 || { pip install watching_testrunner; }