deprecated webkit functions

[rich-coe]

I'm getting these warnings when building with the current webkit libwebkit2gtk-4_1-0 (2.40.4)
I'll try to fix these when I can, unless someone else gets it done first.

liferea_browser.c:413:9: warning: ‘webkit_web_view_run_javascript_finish’ is deprecated: Use 'webkit_web_view_evaluate_javascript_finish' instead [-Wdeprecated-declarations]
  413 |         js_result = webkit_web_view_run_javascript_finish (WEBKIT_WEB_VIEW (object), result, &error);
--
liferea_web_extension.c:93:9: warning: 'webkit_web_page_get_dom_document' is deprecated [-Wdeprecated-declarations]
   93 |         document = webkit_web_page_get_dom_document (page);
--
liferea_web_extension.c:94:9: warning: 'webkit_dom_document_get_default_view' is deprecated [-Wdeprecated-declarations]
   94 |         window = webkit_dom_document_get_default_view (document);
--
liferea_web_extension.c:110:9: warning: 'webkit_dom_dom_window_get_scroll_y' is deprecated [-Wdeprecated-declarations]
  110 |         old_scroll_y = webkit_dom_dom_window_get_scroll_y (window);
--
liferea_web_extension.c:111:9: warning: 'webkit_dom_dom_window_get_inner_height' is deprecated [-Wdeprecated-declarations]
  111 |         increment = webkit_dom_dom_window_get_inner_height (window);
--
liferea_web_extension.c:112:9: warning: 'webkit_dom_dom_window_scroll_by' is deprecated [-Wdeprecated-declarations]
  112 |         webkit_dom_dom_window_scroll_by (window, 0, increment);
--
liferea_web_extension.c:113:9: warning: 'webkit_dom_dom_window_get_scroll_y' is deprecated [-Wdeprecated-declarations]
  113 |         new_scroll_y = webkit_dom_dom_window_get_scroll_y (window);
--
webkit.c:463:9: warning: ‘webkit_web_view_run_javascript’ is deprecated: Use 'webkit_web_view_evaluate_javascript' instead [-Wdeprecated-declarations]
  463 |         webkit_web_view_run_javascript (WEBKIT_WEB_VIEW (widget),
--
liferea_web_view.c:607:41: warning: ‘webkit_web_view_run_javascript’ is deprecated: Use 'webkit_web_view_evaluate_javascript' instead [-Wdeprecated-declarations]
  607 |                                         webkit_web_view_run_javascript (view, "document.webkitExitFullscreen();", NULL, NULL, NULL);

[lwindolf]

I sadly do not have enough time to work on those.

[rich-coe]

I'll submit a patch when I get done with the current libsoup issue.