Opcode 0xF8 in Opcodes.json has an ambiguous "increment" flag

In Opcodes.JSON:
` "0xF8": {
"mnemonic": "LD",
"bytes": 2,
"cycles": [
12
],
"operands": [
{
"name": "HL",
"immediate": true
},
{
"name": "SP",
"increment": true,
"immediate": true
},`

You can see that the second operand SP has the "increment" flag set to true, implying SP should be incremented after the LD operation (as in LD [HL+], A/LD A, [HL+]). This is incorrect because this opcode should leave SP unchanged.

Open Opcodes.json and inspect the 0xF8 entry, especially the second operand for SP. Correct the increment metadata so it no longer indicates that SP changes after the LD operation, then verify the entry matches the stated opcode behavior.

Written by the indexing model from the issue text.