Make workbench 1D plots legends editable in-situ

Merge pull request #29211 from mantidproject/29194_GenerateRecoveryScriptCausesUnexpectedExceptionWithNoWorkspaces

Warn users if they attempt to use Generate Recovery Script with no workspaces

Implement SaveGSSCW

Muon analysis setting active groups on file load and disabling deselecting all groups/pairs

Plot difference checkbox added to muon guis

Catch exceptions by reference

ReplaceSpecialValues: extended checks to the error axis

Disabled other tabs on muon guis while other process run

Added major and minor gridline option to muon guis

Update docs