add jumbo frames to the ex 75pro

please add multi-link

@David-TP overall the new app works well i had one issue with qos not enbled when embled 2500 for ex75 pro & x50 everthing works well overall i would like very much to have channel control in the app...

manual channel selection dfs channels would help alot

mixig the x55 with ex75 pro x55 firmware 2.0.6 ex75pro 1.2.11 just trying cofirm the firware upto date

i recetly added a x55 to my network if i could chane the 6 ghz chael to 64 dfs i would have better network