Add style/genre data: 105 main genres, 939 total styles with loader

- main_style.txt: curated top-level genres (pop, rock, jazz, etc.)
- all_style.txt: full style list (~939 entries)
- genres.ts: parses txt files, exports MAIN_STYLES, ALL_STYLES, SUB_STYLES

data/main_style.txt

@@ -0,0 +1,105 @@
+16-bit
+2-step
+acid house
+acid techno
+acid trance
+acoustic chicago blues
+acoustic rock
+acoustic texas blues
+african folk
+afrikaner folk
+afro house
+afro trap
+afro-cuban jazz
+afro-funk
+afro-jazz
+afro-rock
+afrobeat
+afropiano
+afroswing
+algorave
+alternative r &b
+alternative rock
+ambient techno
+anti-folk
+avant-garde jazz
+bachata
+bedroom pop
+bluegrass
+blues rock
+boogie
+bossa nova
+bubblegum bass
+bubblegum dance
+cabaret
+cajun
+cape verdean
+caribbean
+carnatic
+celtic
+chanson
+chillstep
+chillsynth
+classical
+cloud rap
+coptic
+cumbia
+dance
+dancehall
+dancepop
+dembow
+dirty south
+dream pop
+drill
+dubstep
+edm
+egyptian
+garage
+gnawa
+goa trance
+grime
+griot
+grunge
+hip hop
+house
+hyphy
+illbient
+indie
+jazz
+jungle
+k-pop
+kawaii future bass
+klezmer
+liquid drum and bass
+mariachi
+math rock
+merengue
+motown
+new jack swing
+new wave
+p-funk
+pacific reggae
+polka
+pop
+raga
+rap
+reggae
+rock
+rockabilly
+rumba
+salsa
+samba
+ska
+soul
+southern rock
+surf
+surf rock
+swamp blues
+swing
+symphonic metal
+synthpop
+synthwave
+tango
+trance
+trap
+tuareg