[Feature Request] Notifications on mentions

[golanglemonade]

Describe how the feature might make your life easier or solve a problem

I want to be alerted when my name is mentioned in a comment, internal policy, procedure, risk, or task so I know about it.

Describe the solution you'd like to see with any relevant context

We want to parse the next of the corresponding text field for data that looks like:

<div data-slate-node=\"element\" data-slate-inline=\"true\" data-slate-void=\"true\" data-slate-key=\"01KBR2E182QTFQ27TS4B87G2MB\" data-slate-type=\"mention\" data-slate-value=\"Sarah Funkhouser\" data-slate-id=\"s-DpyYQ0Xk\" class=\"slate-mention inline-block rounded-md bg-muted px-1.5 py-0.5 align-baseline text-sm font-medium\" style=\"position:relative\">

data-slate-key -> user.ID
data-slate-value -> user.DisplayName

We only want to do this if that was added; I think you should be able to use the data-slate-id= and compare the old vs. new value for the field and see if it was there before and only add a notification when that id is new but we should test this.

Fields we want to look at:

comment.text
internalPolicy.Details
procedure.Details
risk.Details
task.Details

Notes:

• Make a package for slate parsing and put it in pkg, its possible we might want to use this for other things
• make a function to checkForMentions -> this should return a map[string]Mention{} where the key is the data-slate-id and Mention contains: userID, userDisplayName, objectType, objectID, objectName
• make a function to checkForNewMentions that takes old text, new text, and list of slate ids -> returns only new ids
• define the fields we are checking for in slack as const to make it easier to expand later + keep up with any breaking changes
• We can then use this to parse events from these object types -> create notifications