rework: make the filter as a tabbed widget in the dialog itself

Still needs a clear indication that the filter only applies after you
click the search button...

launcher/ui/pages/modplatform/flame/FlameModPage.cpp

@@ -67,25 +67,6 @@ auto FlameModPage::validateVersion(ModPlatform::IndexedVersion& ver, QString min
     return ver.mcVersion.contains(mineVer);
 }
 
-// We override this so that it refreshes correctly, otherwise it would show
-// invalid mods on the mod list, because the API would return mods for the
-// wrong mod loader :(
-void FlameModPage::filterMods()
-{
-    auto ret = filter_dialog.execWithInstance(static_cast<MinecraftInstance*>(m_instance));
-    m_filter = filter_dialog.getFilter();
-
-    if(ret == QDialog::DialogCode::Accepted){
-        // CF API can't handle well this
-        if(!m_filter->versions.empty())
-            listModel->refresh();
-
-        int prev_count = ui->versionSelectionBox->count();
-        ui->versionSelectionBox->clear();
-        updateModVersions(prev_count);
-    }
-}
-
 // I don't know why, but doing this on the parent class makes it so that
 // other mod providers start loading before being selected, at least with
 // my Qt, so we need to implement this in every derived class...