JS Loader settings UI improvements

[mydea]

Problem Statement

The current UI to configure the loader has some room for improved clarity:

Solution Brainstorm

Possible improvements in clarity:

• When enabling replay or performance, the SDK version is always 7. We should either disallow setting this to something before 7, or at least show a message that this is the case, I guess?
• When enabling replay, the loader switches from the ES5 build to the ES6 build. This is necessary as replay is ES6-only. We should maybe show a message that this is the case, as it means that the loader will not work e.g. on IE11.
• We should maybe rename "Enable Debug Bundles" to something a bit clearer, e.g. "Enable debug logging" or something like this? IMHO "Debug Bundles" is rather technical/internal. We should also make sure in JS Loader: Sentry.init should be called - with defaults from docs for Performance/Replay #46368 that debug: true is the default in that case.

[danielkhan]

Looks good but needs more copy on the different items so that I know what it is.
E.g. what are "debug Bundles"?

[mydea]

Regarding "Debug Bundles:

What it does?

• We use the xxx.debug.js type bundle, which is slightly larger but includes helpful log messages
• SOON: It sets debug: true config by default in order to actually show the log messages that are included (this is currently WIP, currently this is not set yet)

Basically, without this setting we'll use the non-debug bundles, which means that even if you set debug: true in your config, no debug messages will actually be shown because they aren't even included in the CDN bundle.

How to describe this?

Reasonable names could be:

• Enable logging
• Enable debug messages
• Show debug messages

Or something along these lines?

[mydea]

I implemented part of this tentatively here: #46604

In order to ensure the loader cannot get into an incorrect state. We can def. change the UI if something is not ideal!

[github-actions]

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

---

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀