journalkeepery ~ tags update again

[kossai]

overhaul to whole media tag system - but unfortunately also need to keep short for character limit . changes :

• koplay split between vg for video games , and tg for tabletop and journal games .
• kowatch is now just tv . even if subject is actually movie . oh well .
• originally have tags otplay and otwatch to note , for example , videos by other people . no more - do not use these often enough to really feel need . this in mind then , not all of games in tag list is what kossai personally play .
• all these tags now have m to precede , so these categories all fall together .

with more character space , ideally at least m would be full word for media . really prefer for tags to be self explanatory , but , limits limit .