WIP: Add a setting to visually redact enviroment variables (#7124)

Release Notes:

- Added bash syntax highlighting to `.env` files. 
- Added a `private_files` setting for configuring which files should be
considered to contain environment variables or other sensitive
information.
- Added a `redact_private_values` setting to add or remove censor bars
over variable values in files matching the `private_files` patterns.
-(internal) added a new `redactions.scm` query to our language support,
allowing different config file formats to indicate where environment
variable values can be identified in the syntax tree, added this query
to `bash`, `json`, `toml`, and `yaml` files.

---------

Co-authored-by: Nathan <nathan@zed.dev>

crates/project_panel/src/project_panel.rs

@@ -101,6 +101,7 @@ pub struct EntryDetails {
     is_processing: bool,
     is_cut: bool,
     git_status: Option<GitFileStatus>,
+    is_dotenv: bool,
 }
 
 actions!(
@@ -1137,6 +1138,7 @@ impl ProjectPanel {
                         is_symlink: false,
                         is_ignored: false,
                         is_external: false,
+                        is_private: false,
                         git_status: entry.git_status,
                     });
                 }
@@ -1298,6 +1300,7 @@ impl ProjectPanel {
                             .clipboard_entry
                             .map_or(false, |e| e.is_cut() && e.entry_id() == entry.id),
                         git_status: status,
+                        is_dotenv: entry.is_private,
                     };
 
                     if let Some(edit_state) = &self.edit_state {