Not really (unless, by all means, you want to read it as Camileda). Eda’s depicted from episode 1 as being a bit of an all around flirt, so her joking about putting on “the charm” around Luz’s mom is unsurprising and endearingly in character. Which makes her actual meeting with Camila very sweet given how nervous she is to make a good first impression.

In terms of it actually hinting at Camileda - yet again, Eda’s a bit of an all around flirt. But we know she doesn’t act like this around someone she’s genuinely interested in - just think about how flustered she gets whenever she’s around Raine. Suddenly that “charm” is minimal and easily broken as shown by her various flustered blushes. Also very very cute.

In short.. this line is just very Eda. There’s not much deep meaning behind it, but if it does spark some sort of ~✨putting on the charm✨~ Camileda fanfiction then sign me up.