[TABLE][TASK] Template editor html structure

Change-Id: Id7f73dc2ffb2aed4342f833c0403b7e71ed87878
[TASK] Remove .uppercase html styles

Change-Id: Ife2718b93c249a44d50d472e5d8953409cc40f22
[TYPOGRAPHY][TASK] H1-H5 margins

Change-Id: Id86204b623691b8bbd33de064bdb08a0ad2531fc