Update crash handling docs (#38026)

Also removed the symbolicate script, which we could replace with a
`minidump-stackwalk` wrapper that downloaded sources/unstripped binaries
from github releases if that's helpful for folks.

Release Notes:

- N/A

script/symbolicate

@@ -1,77 +0,0 @@
-#!/usr/bin/env bash
-
-set -eu
-if [[ $# -eq 0 ]] || [[ "$1" == "--help" ]]; then
-  echo "Usage: $(basename $0) <path_to_ips_file_or_json>"
-  echo "This script symbolicates the provided .ips file or .json panic report using the appropriate debug symbols from DigitalOcean"
-  echo ""
-  exit 1
-fi
-
-input_file=$1;
-
-if [[ "$input_file" == *.json ]]; then
-    version=$(cat $input_file | jq -r .panic.app_version)
-    channel=$(cat $input_file | jq -r .panic.release_channel)
-    target_triple=$(cat $input_file | jq -r .panic.target)
-
-    which llvm-symbolizer rustfilt >/dev/null || (echo Need to install llvm-symbolizer and rustfilt && exit 1)
-
-    echo $channel;
-
-    mkdir -p target/dsyms/$channel
-
-    if [[ "$version" == "remote-server-"* ]]; then
-        version="${version#remote-server-}"
-        dsym="$channel/remote_server-$version-$target_triple.dbg"
-    else
-        dsym="$channel/zed-$version-$target_triple.dbg"
-    fi
-    if [[ ! -f target/dsyms/$dsym ]]; then
-        echo "Downloading $dsym..."
-        curl -o target/dsyms/$dsym.gz "https://zed-debug-symbols.nyc3.digitaloceanspaces.com/$dsym.gz"
-        gunzip  target/dsyms/$dsym.gz
-    fi
-
-    cat $input_file | jq -r .panic.backtrace[] | sed s'/.*+//' | llvm-symbolizer --no-demangle --obj=target/dsyms/$dsym | rustfilt
-
-else # ips file
-
-    version=$(cat $input_file | head -n 1 | jq -r .app_version)
-    bundle_id=$(cat $input_file | head -n 1 | jq -r .bundleID)
-    cpu_type=$(cat $input_file | tail -n+2 | jq -r .cpuType)
-
-    which symbolicate >/dev/null || cargo install symbolicate
-
-    arch="x86_64-apple-darwin"
-    if [[ "$cpu_type" == *ARM-64* ]]; then
-        arch="aarch64-apple-darwin"
-    fi
-    echo $bundle_id;
-
-    channel="stable"
-    if [[ "$bundle_id" == *Nightly* ]]; then
-        channel="nightly"
-    elif [[ "$bundle_id" == *Preview* ]]; then
-        channel="preview"
-    fi
-
-    mkdir -p target/dsyms/$channel
-
-    # NOTE: if you see "no such file --uuid", you need to update your symbolicate
-    uuid=$(symbolicate $input_file --uuid || true)
-    if [[ $? -ne 0 ]]; then
-        echo "You need to update your symbolicate: cargo install symbolicate"
-        exit 1
-    fi
-    dsym="$uuid.dwarf"
-    if [[ ! -f target/dsyms/$dsym ]]; then
-        echo "Downloading $dsym..."
-        curl -f -o target/dsyms/$dsym.gz "https://zed-debug-symbols.nyc3.digitaloceanspaces.com/by-uuid/${uuid}.dwarf.gz" ||
-            curl -f -o target/dsyms/$dsym.gz "https://zed-debug-symbols.nyc3.digitaloceanspaces.com/$channel/Zed-$version-$arch.dwarf.gz"
-        gunzip  target/dsyms/$dsym.gz
-    fi
-
-    symbolicate $input_file target/dsyms/$dsym
-
-fi