fix(explain): align table correctly (#1482)

* fix(explain): align table correctly

* iterate over lines directly

* calculate desc_width with the actual space available

* custom unicode-aware textwrapping

* fix clippy error

* better width estimination

* explain +6

* move padding width into a constant

Cargo.lock

@@ -195,7 +195,7 @@ dependencies = [
  "atty",
  "bitflags",
  "strsim",
- "textwrap 0.11.0",
+ "textwrap",
  "unicode-width",
  "vec_map",
 ]
@@ -1110,7 +1110,6 @@ dependencies = [
  "sysinfo",
  "tempfile",
  "term_size",
- "textwrap 0.12.1",
  "toml",
  "unicode-segmentation",
  "unicode-width",
@@ -1202,15 +1201,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "textwrap"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "203008d98caf094106cfaba70acfed15e18ed3ddb7d94e49baec153a2b462789"
-dependencies = [
- "unicode-width",
-]
-
 [[package]]
 name = "thread_local"
 version = "1.0.1"