LS: Run Cairo formatter over item signatures in hover

[mkaput]

This change is 

[orizi]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @mkaput)

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crates/cairo-lang-language-server/src/lang/inspect/defs.rs line 266 at r1 (raw file):

// Run Cairo formatter over code with extra post-processing that is specific to signatures.
fn fmt(code: String) -> String {

Suggestion:

/// Run Cairo formatter over code with extra post-processing that is specific to signatures.
fn fmt(code: String) -> String {

[mkaput]

Reviewable status: 2 of 3 files reviewed, 1 unresolved discussion (waiting on @orizi)

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crates/cairo-lang-language-server/src/lang/inspect/defs.rs line 266 at r1 (raw file):

// Run Cairo formatter over code with extra post-processing that is specific to signatures.
fn fmt(code: String) -> String {

Done.