[Teacher_preview] Fix color tagging in "Data Statistic Tester > Print Letters and words they appear in"

[FrancyCavallari]

In Unity 2021 the color marker are not handled the same way, making the uotput much less user-friendly:

<color=red>(ا) alef:    airport, arm, attractive, aunt_mother, autumn, bank, beach, bed, bedroom, bicycle, book, bread, breeze, brother, cherry, closet, cloud, coat, color_black, color_brown, color_grey, color_orange, cow, crocodile, cucumber, cup, day_wednesday, door, down, dragon, duck, energy, essay, example, finger, floor, food, fox, fridge, garden, goodbye, granddaughter, grandmother, grandpa, grapes, hail, henna, horse, hospital, house, iron, jacket, judge, kiss, kitchen, knife, lady, lamp, leg, library, lizard, market, moon, mother, motorbike, nail, number_04, number_11, number_12, number_14, number_15, number_16, octopus, onion, oven, paper, park, pear, pet, pharmacy, plane, plant, playground, potato, print, rain, restaurant, reward, river, roof, scarf, sea, second, shepherd, shirt, shop, shower, signature, sink, sister, skirt, sky, snake, soap, socks, spelling, spoon, spring, squirrel, star, station, stove, summer, sun, tea, tear, test, theatre, toilet, tomato, tongue, tooth, towel, toy, train, trousers, uncle_father, uncle_mother, volcano, washing_machine, watermelon, winter, yogurt, zoo, </color>
<color=red>(آ) alef_madda:  apricot, cherry, color_blue, fire, ice-cream, juice, kitchen, mirror, sink, sky, sun, volcano, water, </color>
<color=red>(اُ) alef_pish:  </color>
<color=red>(اَ) alef_zebar:     </color>
<color=red>(اِ) alef_zir:   </color>
<color=red>(ع) ayn:     aunt_father, bee, box, castle, day_friday, doll, field, </color>
<color=red>(عُ) ayn_pish:   </color>
<color=red>(عَ) ayn_zebar:  </color>
<color=red>(عِ) ayn_zir:    </color>

[FrancyCavallari]

The issue is still present... even if the output may be slighly different

[CatmanIta]

You know what, I'm just getting rid of the colors :)