Fix ineffective parseMustache option

[Steve-Mcl]

The new option to disable mustache parsing did not work due to an incorrect falsy check.

This PR does:

• Ensure setting for parseMustache is respected
• Skips mustache rendering if no tokens exist in the the query (auto skip mustache rendering)
• A little code tidy and linting

[Copilot]

Pull Request Overview

This PR fixes the issue with the mustache parsing option not being respected, and improves code readability and linting in the related modules.

• Updates the falsy check for the parseMustache configuration to correctly disable mustache parsing.
• Introduces a token extraction check to skip rendering when no mustache tokens are found.
• Refactors code in the HTML editor to use a clearer undefined check.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/mssql.js	Corrects parseMustache logic and refactors token extraction control flow.
src/mssql.html	Improves the undefined check for parseMustache in the editor.

[Copilot]

Pull Request Overview

This PR fixes the issue preventing the disabling of mustache parsing by correcting the falsy check while also tidying up the code.

• Fixed falsy check for the mustache parsing configuration.
• Added an auto-skip for mustache rendering if no tokens are found.
• Improved code tidiness and linting.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/mssql.js	Updated falsy check for mustache parsing and token handling.
src/mssql.html	Revised undefined check for parseMustache in the editor UI.

Comments suppressed due to low confidence (2)

src/mssql.js:499

• [nitpick] The corrected falsy check for config.parseMustache now properly respects explicit false values. Verify that other falsy inputs (e.g., null or 0) are intended to enable mustache parsing.

node.parseMustache = !(config.parseMustache === false || config.parseMustache === 'false'); // if not explicitly set to false, then enable mustache parsing

src/mssql.html:420

• [nitpick] Using 'typeof' to safely check for undefined enhances robustness over direct undefined comparisons.

if (typeof node.parseMustache === 'undefined') {

[Steve-Mcl]

@bestlong please review & merge ASAP
Also please push a new patch release 0.12.3