fix(query-editor): preserve stop hover contrast

Author: astandrik

src/containers/Tenant/Query/QueryEditorControls/EditorButton.scss

@@ -14,6 +14,7 @@
         .g-root_theme_dark &,
         .g-root_theme_dark-hc & {
             --g-button-text-color: var(--g-color-text-dark-primary);
+            --g-button-text-color-hover: var(--g-color-text-dark-primary);
             --g-button-background-color: var(--g-color-base-light);
             --g-button-background-color-hover: var(--g-color-base-light-hover);
             --g-button-focus-outline-color: var(--g-color-line-light);