[Pidgin] Batch modify: #8311, #16240, #16241, #16242, #16243, #16244, #16245, #16246

[Pidgin]

Batch modification to #8311, #16240, #16241, #16242, #16243, #16244, #16245, #16246 by MarkDoliner:
milestone to 2.10.11

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Tickets URL: <https://developer.pidgin.im/query?id=8311%2C16240%2C16241%2C16242%2C16243%2C16244%2C16245%2C16246>
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