Improve error message for QueryError and DataLoaderError (#9998)

### Related
* #1845
* #8681

### What
This problem keeps biting us in the ass: We get really bad error reports
from users because the default `Display` for `anyhow::Error` only
includes the latest context, and not the whole error 😠

Author: emilk

Cargo.lock

@@ -6848,6 +6848,7 @@ dependencies = [
  "re_build_info",
  "re_chunk",
  "re_crash_handler",
+ "re_error",
  "re_log",
  "re_log_encoding",
  "re_log_types",

crates/store/re_data_loader/Cargo.toml

@@ -27,6 +27,7 @@ default = []
 re_arrow_util.workspace = true
 re_build_info.workspace = true
 re_chunk.workspace = true
+re_error.workspace = true
 re_log_encoding = { workspace = true, features = ["decoder"] }
 re_log_types.workspace = true
 re_log.workspace = true

crates/store/re_data_loader/src/lib.rs

@@ -328,7 +328,7 @@ pub enum DataLoaderError {
     #[error("No data-loader support for {0:?}")]
     Incompatible(std::path::PathBuf),
 
-    #[error(transparent)]
+    #[error("{}", re_error::format(.0))]
     Other(#[from] anyhow::Error),
 }
 

crates/store/re_query/src/lib.rs

@@ -67,7 +67,7 @@ pub enum QueryError {
     #[error("Not implemented")]
     NotImplemented,
 
-    #[error(transparent)]
+    #[error("{}", re_error::format(.0))]
     Other(#[from] anyhow::Error),
 }