* Reduce code size by removing nullptr assignments
* Optimize tagDB for loops
* More tagDB optimizations
* Remove static from language arrays reducing RAM by 5128b
- Reduces Flash by 13060b
* Add missing extern in tag_db.h
* Fix deprecation warning of sntp.h
* Remove static from contentmanager, reduces RAM by 184b
* Use string reference in prepareDataAvail
- Remove some unneeded buffers
- Remove some gotos