Fix web export state for Remote Debug

[adamscott]

Fixes #92162 and simplifies the export plugin code (no need to resort converting a boolean to an int, then incrementing it).

[akien-mga]

For the record there's still time to merge this kind of bugfix in 4.3, especially as it's (partially?) a regression fix compared to 4.2, IINM.

[adamscott]

web debug icon activates even if only release template is added, but I think bug (?) is in /editor/export/editor_export_platform.cpp

-- @patwork in the developers chat

I investigated the issue and it is a bug, a bug even shared with other exporters. But my quick fix leads to other issues, such as the export buttons being greyed out even if there's a valid debug template.

@akien-mga, I suggest that we merge this PR, and I'll create an issue on the tracker about the reported bug. I don't think it's urgent to fix this issue for 4.3.

[adamscott]

But my quick fix leads to other issues, such as the export buttons being greyed out even if there's a valid debug template.

The quick fix in question is this one:

diff --git a/platform/web/export/export_plugin.cpp b/platform/web/export/export_plugin.cpp
index d83e465e8e..dd7235bc6e 100644
--- a/platform/web/export/export_plugin.cpp
+++ b/platform/web/export/export_plugin.cpp
@@ -413,7 +413,7 @@ bool EditorExportPlatformWeb::has_valid_export_configuration(const Ref<EditorExp
 		}
 	}
 
-	valid = dvalid || rvalid;
+	valid = (p_debug && dvalid) || (!p_debug && rvalid);
 	r_missing_templates = !valid;
 
 	if (!err.is_empty()) {

[akien-mga]

Thanks!