QS websocket msg parsing breaks

[SeijDeLeon]

finch/src/components/QServer/QSConsole.tsx

Line 64 in b7284fc

if (eventData.msg.startsWith('[')) {

This can break depending on the message sent over. Need to do some type checks before calling methods on it.

error:

Uncaught TypeError: eventData.msg.startsWith is not a function
    at QSConsole.tsx:64:35
    at basicStateReducer (chunk-PNGJSGSD.js?v=0e3f696c:11751:49)
    at updateReducer (chunk-PNGJSGSD.js?v=0e3f696c:11842:30)
    at updateState (chunk-PNGJSGSD.js?v=0e3f696c:12069:18)
    at Object.useState (chunk-PNGJSGSD.js?v=0e3f696c:12801:24)
    at useState (chunk-3TFVT2CW.js?v=0e3f696c:1066:29)
    at QSConsole (QSConsole.tsx:20:41)

This occured while running ophyd-websocket version 0.1.1 from pypi