fix: chat opening methods accept a Wid param

[gekkedev]

These 2 methods appear to support Wid as input param. References from wa-js:

• https://github.com/wppconnect-team/wa-js/blob/87953a33e8a162ef33474045593960829ac47c3c/src/chat/functions/openChatBottom.ts#L30
• https://github.com/wppconnect-team/wa-js/blob/87953a33e8a162ef33474045593960829ac47c3c/src/chat/functions/openChatAt.ts#L33

Additional change: The return type of getActiveChat() appears to be:

Promise<import("@wppconnect/wa-js/dist/whatsapp").ChatModel>

but VSCode and tsc disagree with me (not knowing the type (imported by and imported library from a different library, maybe that's why):

error TS2740: Type 'Promise<any>' is missing the following properties from type 'Chat': id, pendingMsgs, lastReceivedKey, t, and 23 more.

Feel free to revert 9c30eec if there is a better solution (i.e. if fixing it on wa-js side is possible).