Change application name from 'lf' to 'Lf' in desktop file

[Hello-world150]

Capitalize the first letter to match most desktop file conventions.

[CatsDeservePets]

I wanted to see what other applications do:

• ranger uses ranger
• yazi uses Yazi
• vim uses Vim
• nvim uses Neovim

So I guess it does make sense to use Lf as a name. However, before merging this I want @joelim-work to look over this as I don't know whether this could potentially cause problems with packages or something like that and whether this should be added to the changelog.

[Hello-world150]

I wanted to see what other applications do:

• ranger uses ranger
• yazi uses Yazi
• vim uses Vim
• nvim uses Neovim

So I guess it does make sense to use Lf as a name. However, before merging this I want @joelim-work to look over this as I don't know whether this could potentially cause problems with packages or something like that and whether this should be added to the changelog.

If downstream maintainers are just packaging the files into the software package, this shouldn't have much impact. As for the change log, I tend not to record it, because this change doesn't make any substantial modifications.

[joelim-work]

According to the Desktop Entry Specification, the Name field doesn't mention any requirements about capitalization:

Specific name of the application, for example "Mozilla".

My understanding is that Name is purely cosmetic, and should reflect the official branding name. The original author of this project (@gokcehan) isn't actively involved these days, but based on what I have seen the name is actually lowercase (usually the docs refer to it as lf, not lf or Lf or LF).