[Fix] Resolve missing XPS resource (#1071)

* Add xps resource
* Remove `structure` from XAS title

src/aiidalab_qe/plugins/xas/resources.py

@@ -10,7 +10,7 @@
 class XasResourceSettingsModel(PluginResourceSettingsModel):
     """Model for the XAS plugin."""
 
-    title = "XAS Structure"
+    title = "XAS"
     identifier = "xas"
 
     def __init__(self, **kwargs):

src/aiidalab_qe/plugins/xps/__init__.py

@@ -1,6 +1,7 @@
 from aiidalab_qe.common.panel import PluginOutline
 
 from .model import XpsConfigurationSettingsModel
+from .resources import XpsResourceSettingsModel, XpsResourceSettingsPanel
 from .result import XpsResultsModel, XpsResultsPanel
 from .setting import XpsConfigurationSettingsPanel
 from .structure_examples import structure_examples
@@ -18,6 +19,10 @@ class XpsPluginOutline(PluginOutline):
         "panel": XpsConfigurationSettingsPanel,
         "model": XpsConfigurationSettingsModel,
     },
+    "resources": {
+        "panel": XpsResourceSettingsPanel,
+        "model": XpsResourceSettingsModel,
+    },
     "result": {
         "panel": XpsResultsPanel,
         "model": XpsResultsModel,

src/aiidalab_qe/plugins/xps/resources.py

@@ -0,0 +1,32 @@
+"""Resource panel for XPS plugin."""
+
+from aiidalab_qe.common.code.model import PwCodeModel
+from aiidalab_qe.common.panel import (
+    PluginResourceSettingsModel,
+    PluginResourceSettingsPanel,
+)
+
+
+class XpsResourceSettingsModel(PluginResourceSettingsModel):
+    """Model for the XPS plugin."""
+
+    title = "XPS"
+    identifier = "xps"
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.add_models(
+            {
+                "pw": PwCodeModel(
+                    name="pw.x",
+                    description="pw.x",
+                    default_calc_job_plugin="quantumespresso.pw",
+                ),
+            }
+        )
+
+
+class XpsResourceSettingsPanel(
+    PluginResourceSettingsPanel[XpsResourceSettingsModel],
+):
+    """Panel for configuring the XPS plugin."""