Filehandling overwrite dialog

Added: overwrite dialog permission support small bugfixes

@pbeke

demo/assets/.htaccess.ejs

+DirectoryIndex <%= getUrl(name + '.html') %>
+<FilesMatch "^(de|en|)$">
+    FallbackResource <%= getUrl(name + '.html') %>
+</FilesMatch>
+
+Header set Cache-Control "must-revalidate, max-age=60"
+Header set Content-Security-Policy "default-src 'self' 'unsafe-eval' 'unsafe-inline' analytics.tugraz.at <%= keyCloakServer %> <%= entryPointURL %> httpbin.org <%= nextcloudBaseURL %> www.handy-signatur.at <%= pdfAsQualifiedlySigningServer %>; img-src * blob: data:"
+
+# Apache adds a "-gzip" suffix to the etag when it uses gzip but doesn't
+# take that into account when receiving requests.
+# See https://bz.apache.org/bugzilla/show_bug.cgi?id=45023
+RequestHeader edit "If-None-Match" '^"((.*)-(gzip|br))"$' '"$1", "$2"'
\ No newline at end of file