They need the leaves to feed the bulb so I would not recommend cutting them off. All I would do is to top up the pot with compost. The bulbs will not care about being buried deeper. In fact they probably will do better. Then plant your pansies over the top as before.
This is a plant once, weed out forever plant, do be warned, it seeds all over the place. Don't understand why it is so expensive in the Garden Centres either when it is so easy to grow.
Those are Damsons, or possibly a wild plum/Bullace. Certainly not a sloe. Usable in alcohol either way.
To keep the envelope and contents flat so that it does not exceed the thickness limit by bunching together, I use a tiny piece of double sided tape to hold the seed envelopes in place inside the posting envelope.
Important thing to do though is to remove all the plums, when ripe and burn or bin the infected ones. That reduces the population a little.
Transplant when young, they hate root disturbance and more often than not die if moved when bigger plants.
I live on frozen apple purée and frozen baked apples in the winter. Well at least for desserts anyway.
No, as you can see it works for me.
Picked ours last week, ripe too. As suggested, purée and freeze for winter use or if unbruised by the fall, core, fill with dried fruit and syrup and bake in the oven. Then freeze for winter use.
They needs food. They needs sun. They needs planting with the top of the 'bulb' no more than an inch below the soil level. So, yes move them to a better position.