Improve consistency and usability of build panel handling (#1657)

# Description

This PR makes three small but related improvements around the LaTeXTools build panel:

* **Expose "Show build panel" in the Command Palette**
    * Adds a new command palette entry:
        
        ```
        makefileCopy codeLaTeXTools: Show build panel
        ```
    * This provides a discoverable way for users to reopen the build panel manually (useful when `"hide_build_panel"` is set to `"always"` or `"never"`).
* **Clarify and correct documentation of `hide_build_panel`**
    * The previous comments in `LaTeXTools.sublime-settings` were inconsistent:
        * The code fallback was `"no_warnings"`.
        * The defaults file set `"no_badboxes"`.
        * The comments claimed `"never"` was the default.
    * The docs are now clearer, consistent, and explicitly state the true default.
* **Align code fallback with shipped defaults**
    * In `make_pdf.py`, the fallback for `get_setting("hide_build_panel", ...)` is updated from `"no_warnings"` → `"no_badboxes"`.
    * This ensures consistency between the source code and the default settings file.

---

# Benefits

* Users get an easy, discoverable way to open the build panel on demand.
* Documentation is clearer and avoids contradictory information about defaults.
* Settings behavior is more consistent between code and defaults, reducing confusion for both users and contributors.

Author: alberti42

Default.sublime-commands

@@ -85,6 +85,11 @@
 		"command": "latextools_make_pdf",
 		"args": { "hide_annotations_only": true }
 	},
+	{
+		"caption": "LaTeXTools: Show build panel",
+		"command": "show_panel",
+		"args": { "panel": "output.latextools" }
+	},
 	{
 		"caption": "Preferences: LaTeXTools Settings",
 		"command": "edit_settings",

LaTeXTools.sublime-settings

@@ -466,15 +466,18 @@
 	"scroll_build_panel_to_top": false,
 
 	// OPTION: "hide_build_panel"
-	// level to hide the build panel after the build is finished
+	// Controls when the LaTeX build panel is hidden after a build finishes.
+	// Default: "no_warnings"
+	//
 	// Possible values are:
-	// "always" (hide the panel even if the build failed),
-	// "no_errors" (only hide the panel if the build was successful even with warnings),
-	// "no_warnings" (only hide the panel if no warnings occur)
-	// "no_badboxes" (only hide the panel if no badbox messages occur when badboxes are enabled) and
-	// "never" (default, never hide the build panel)
+	//   "always"      — always hide the panel, even if the build failed.
+	//   "no_errors"   — hide the panel if there are no errors.
+	//   "no_warnings" — hide the panel if there are neither errors nor warnings.
+	//   "no_badboxes" — hide the panel if there are no errors, warnings, or badboxes
+	//                   (when badbox reporting is enabled).
+	//   "never"       — never hide the panel.
 	"hide_build_panel": "no_badboxes",
-
+  
 	// OPTION: "display_bad_boxes"
 	// controls whether or not to display any bad boxes in the build output
 	// if this is not set to true, the setting "no_badboxes" for

latextools/make_pdf.py

@@ -431,7 +431,7 @@ def run(
 
         self.output_view.set_read_only(True)
 
-        self.hide_panel_level = get_setting("hide_build_panel", "no_warnings", view)
+        self.hide_panel_level = get_setting("hide_build_panel", "no_badboxes", view)
         if self.hide_panel_level == "never":
             self.show_output_panel(force=True)