refactor: content tab styling (#7091)

* refactor: managed content card

* fix: update filter pill styling to be chips-like

* fix: modpack exporting

* fixed: vanilla server projs + header

* refactor: filters

* refactor: detect external file icons + other metadata inside

* refactor: support json5 metadata

* fix: qa

* fix: qa

* fix: fmt + prepr

* fix: fmt

* fix: qa

* fix: headers

* feat: locking

* fix: clippy

* fix: qa

* fix: frozen loc

* fix: shared instances diff calc break

* fix: env filter + remove categories

Cargo.lock

@@ -5347,6 +5347,16 @@ dependencies = [
  "thiserror 1.0.69",
 ]
 
+[[package]]
+name = "json5"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "733a844dbd6fef128e98cb4487b887cb55454d92cd9994b1bafe004fabbe670c"
+dependencies = [
+ "serde",
+ "ucd-trie",
+]
+
 [[package]]
 name = "jsonptr"
 version = "0.6.3"
@@ -10959,6 +10969,7 @@ dependencies = [
  "image",
  "indicatif",
  "itertools 0.14.0",
+ "json5",
  "modrinth-content-management",
  "notify",
  "notify-debouncer-mini",
@@ -10988,6 +10999,7 @@ dependencies = [
  "thiserror 2.0.17",
  "tokio",
  "tokio-util",
+ "toml 0.9.8",
  "tracing",
  "tracing-error",
  "tracing-subscriber",
@@ -11710,6 +11722,12 @@ version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6f5e870be6c3b371b77fe0ee0bafb859fa4964b4404c27de1d380043c4dda20"
 
+[[package]]
+name = "ucd-trie"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2896d95c02a80c6d6a5d6e953d479f5ddf2dfdb6a244441010e373ac0fb88971"
+
 [[package]]
 name = "uds_windows"
 version = "1.1.0"