gui: Disable versions button when folder is paused (#7611)

Disable the Versions button when the folder is paused, because it does
not work, i.e. the versioned files are not loaded. The folder needs to
be unpaused to actually be able to view the versioned file list.

Signed-off-by: Tomasz Wilczyński <[email protected]>

gui/default/index.html

@@ -560,7 +560,7 @@
                     <button ng-if="folder.paused" type="button" class="btn btn-sm btn-default" ng-click="setFolderPause(folder.id, false)">
                       <span class="fas fa-play"></span>&nbsp;<span translate>Resume</span>
                     </button>
-                    <button type="button" class="btn btn-default btn-sm" ng-click="restoreVersions.show(folder.id)" ng-if="folder.versioning.type && folder.versioning.type != 'external'">
+                    <button type="button" class="btn btn-default btn-sm" ng-click="restoreVersions.show(folder.id)" ng-if="folder.versioning.type && folder.versioning.type != 'external'" ng-disabled="folder.paused">
                       <span class="fas fa-undo"></span>&nbsp;<span translate>Versions</span>
                     </button>
                     <button type="button" class="btn btn-sm btn-default" ng-click="rescanFolder(folder.id)" ng-disabled="['idle', 'stopped', 'unshared', 'outofsync', 'faileditems', 'localadditions'].indexOf(folderStatus(folder)) < 0">