[facets] Fix disappearance of navtop component on facet filtering which is because facets are replacing the whole #pageContent div, while this one contains other stuff than the view: * a type selector component that should be dropped for a while, * a computed title, * the page navigation. Then the view content itself is in a #contentmain div. The thing is that the navigation should be rebuilded on filtering (this is not the case for other bullets in the list above). This is currently handled specifically in the ajaxcontroller (except for the type selector which will disappear... who said it should be dropped at once?). So to fix this we: * put the page navigation into the "contentmain" div * don't replace anymore "pageContent" but "contentmain" After that we can even remove from the ajax controller the code that reimplements title handling similarly to the main template. Notice the part that changes the main template has to be ported to squareui. Closes #17074195

[web] Set response status to 400 when appropriate in ajax controller When this is clearly a client error, set status to 400. Otherwise, keep the default value for RemoteCallFailed (status=500).

[web] Only log exceptions in debug mode in Ajax controllers When we raise a RemoteCallFailed error (erroneously turned into a '500 Internal Server Error' response, but that's another business). In production environment, we do not want to log the exception in most cases where it's actually a client error. So only log the exception in debug mode.

[pyramid] Only expose 'cubicweb.bwcompat' setting for "all-in-one" configuration type The "pyramid" instance configuration does not work with "cubiwceb.bwcompat" mode (on purpose). Yet, having the setting exposed in development.ini file (generate by `cubicweb-ctl create --config pyramid <cube> <instance>` command) is misleading and we want to remove it. Thus, we only query this setting when cubicweb configuration is "all-in-one" and drop the setting line from templated development.ini file. If the option is found and True for any other configuration type, we issue a user warning (and ignore the option).

[migration] Only drop moved table entities if it does not exists For very old instances (namely docaster), this table has never been created.

[web/views] delete: show composite entities in predictible order Iterate over relations type in alphabetical order, so the order is predictible dans does not depend on PYTHONHASHSEED.

[req] fix find() generating non-rewritable rql on non final relations When filtering on a relation, find() was generating rql like 'Any X WHERE X is ETYPE, X relation EID' which work without being rewritten (it should probably not), but when applying some rewrite (eg. permissions) it raise in rqlrewrite code. def _use_orig_term(self, snippet_varname, term): ... > self.rewritten[key] = term.name E AttributeError: 'Constant' object has no attribute 'name' Generate valid rql instead 'Any X WHERE X is ETYPE, X relation Y, Y eid EID'.

[req] raise KeyError instead of AssertionError in req.find()

[req] use format() instead of % substitution For readability, avoid escaping using %% and use format() instead.

[test] make assertions on exception message