[GEOPY-2704] fix capitalization in tooltips

Author: sebhmg

simpeg_drivers-assets/uijson/tipper_inversion.ui.json

@@ -417,7 +417,7 @@
         "min": 0,
         "group": "Sparse/blocky model",
         "label": "Maximum IRLS iterations",
-        "tooltip": "Incomplete Re-weighted Least Squares iterations for non-L2 problems",
+        "tooltip": "Incomplete re-weighted least squares iterations for non-L2 problems",
         "value": 25,
         "enabled": true,
         "verbose": 2