In JSF, searching by tags is not possible even with relations implementation of tags

NXP-26900 implementation (removal of GUI search entry in JSF for facet implementation of tags) removes also the ability to search by tags when using the relations implementation of tags

To reproduce in 9.10:

• Install 9.10+HF29
• force the relations implementation of tags using the attached contribution in nxserver/config
• Boot and create some tags
• Observe search by tags icon behavior on the left-hand-side => it works

• Install HF30
• Boot
• Observe the search by tags =>

1. has changed position
2. has changed icon
3. is now called navtree_TAG_CLOUD and that clicking on the icon does nothing and the log shows ERROR message:

   TabActionsSelection] Cannot set current action 'navtree_TAG_CLOUD' for category 'TREE_EXPLORER' as this action does not hold the given category.
   

Expected behavior: When using the relations implementation of Tags, no change in behavior when applying a HotFix. (same icon, same position in the menu, working feature)