#thumb("") comment causes inconsistent node description based on OS

[jgrenda]

Node descriptions (Script Documentation Comments) are a vital part of the exploration possibilities when adding a new node.

Usually these are marked by '##' and contain a short and/or long description of the node/script, like so:

## The ClockBehavior is a [class Behavior] that encasulates a [class Timer]
## and makes it accessible to other behaviors.

However, this description appears to only load into the node addition dialog based on the underlying OS.
Tested:

• Win10 Home 22H2 19045.4046 -> Displayed in Node Addition Dialog
• Ubuntu 20.04.6 LTS -> Not displayed, shows "No description available for Behavior"
  Both OS had the Version v4.2.1.stable.official [b09f793f5] of Godot installed.

My guess is this is caused by the #thumb("") annotation in line 2 of each Behavior script.
For some reason, the Ubuntu version of Godot handles this differently from the Windows version.
When the #thumb("") annotation is removed or moved below the descriptive comments, the Ubuntu version "sometimes" displays the correct description.

Therefore, either move the #thumb annotation below the descriptive comments or take it up with the godot project:
https://github.com/godotengine/godot/issues