Are Tabaxi Claws considered unarmed attacks for the purposes of the Monks Martial Arts? So using the martial arts skill, if I attack with the dagger on my action (His Monk Weapon of choice) then follow up with bonus action with the Tabaxi claw as the unarmed attack(It states in the racial feat "You can use your claws to make unarmed strikes") or must it be the Monk Unarmed attack of d4?

Edit: I notice that dndbeyond character builder applies my DEX modifiers to the Tabaxi Claws with the addition of Martial arts.

Short answer: yes.  Examining the rules involved for Martial Arts has a lot of "you can" lines, as does the Kitty Claws ability.  When you hit with your claws, you deal 1d6+STR slashing instead of 1+STR bludgeoning.  Using Martial Arts, you can (but you do not have to) replace STR with DEX.  Using Martial Arts, you can (but you do not have to) replace whatever damage die you use for unarmed attacks with your Martial Arts die.  The Kitty Claws rule explicitly says "you can use your claws to make unarmed attacks."  So yes, you can go Cat Scratch Fever as a monk bonus action or a Furry of Blows.