* Implements the alignat environment for flexible math spacing
* Renames alignat[*] to alignedat and factors out duplicate code of aligned and alignedat as alignedHandler
* Adds aligned at to screenshotter
* alignedat screenshots
* Implements the alignat environment for flexible math spacing
* Renames alignat[*] to alignedat and factors out duplicate code of aligned and alignedat as alignedHandler
* Adds aligned at to screenshotter
* alignedat screenshots
* fix style nit
* fix lint