add new theme keys for LSP diagnostic tags

[krish-r]

Hello,

I noticed that the new LSP Diagnostic theme keys (#9780) have been added only to a few themes (#9949, #9967).

So, I've tried to add them to the remaining themes (under helix/runtime/themes/) excluding the inherited themes (i.e. themes with inherits property).

Screenshot: gruvbox_dark_hard

Summary:
Total Themes	134	(under helix/runtime/themes/)
Inherited Themes	44	(skipped)
Themes with latest diagnostic tags	2	(skipped) - jetbrains_dark.toml, dark_plus.toml
Modified Themes	83	(skipped) - base16_ (4 files) and term16_ (1 file)

Note: Looks like the following themes do not contain any diagnostic theme keys (apart from the ones I added) - dracula_at_night.toml, material_deep_ocean.toml, snazzy.toml

(Edit01: moved the 'Note' out of table to fix formatting)
(Edit02: updated the summary)

Thanks

[the-mikedavis]

The changes to the base16_ and term16_ themes should be reset - those themes are meant to be used in barebones terminals that most likely won't support the dim or crossed out modifiers

[krish-r]

ah! okay. I've reset the changes for base16_ and term16_ themes.

(I was initially thinking about skipping those themes, but had included them after noticing the use of crossed out and dim modifiers for markups configuration in them.)

Thanks