Collapsible side panels and inline glyph rename

[travisformayor]

Sidebars were fixed-width with glyphs in a toolbar menu. Panels now collapse to a rail and resize by drag and the glyph menu is a palette. You can also rename a glyph by double clicking its label on the canvas, letting you get the initial design down without needing to expand the info side panel.

• Add SidePanelComponent that can collapse to a rail and resize on drag
• Side panels overlap the canvas instead of moving it
• Replace the toolbar glyph menu with a searchable palette
• Palette sections auto-expand when the search phrase matches a glyph inside
• Floating canvas widgets (zoom controls, problems, hierarchy) move with panel width resizing
• Double clicking a glyph's label allows renaming it

Closes #438

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://blue-flower-0c36fd81e-454.westus2.5.azurestaticapps.net

[Copilot]

Pull request overview

This PR modernizes the SBOLCanvas workspace layout by replacing fixed Angular Material sidebars with a custom collapsible/resizable side-panel system that overlays the canvas, introduces a searchable glyph palette, and adds inline glyph renaming via mxGraph label editing.

Changes:

• Added SidePanelComponent + CollapsibleSectionComponent to support collapsible rails and drag-resizable overlay panels.
• Replaced the old GlyphMenuComponent + SearchfilterPipe approach with a palette-driven glyph grid (service-backed dicts + drag-source directive).
• Updated floating canvas widgets positioning (zoom/problems/hierarchy) to track panel widths via CSS variables; added inline glyph label rename handling in GraphService.

Reviewed changes

Copilot reviewed 29 out of 29 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
SBOLCanvasFrontend/src/styles.scss	Adds global resizing affordances (disables selection/pointer events during panel drag; suppresses widget transitions).
SBOLCanvasFrontend/src/app/zoom-controls/zoom-controls.component.css	Moves zoom controls based on --left-panel-w and animates left offset.
SBOLCanvasFrontend/src/app/problems/problems.component.css	Moves problems widget based on --right-panel-w and animates right offset.
SBOLCanvasFrontend/src/app/hierarchy-preview/hierarchy-preview.component.css	Moves hierarchy widget based on --right-panel-w and animates right offset.
SBOLCanvasFrontend/src/app/side-panel/side-panel.component.ts	New collapsible/resizable side panel controller logic (toggle, search forwarding, pointer resizing).
SBOLCanvasFrontend/src/app/side-panel/side-panel.component.scss	New side-panel styling including rail mode, title bar, and resize grabber.
SBOLCanvasFrontend/src/app/side-panel/side-panel.component.html	New side-panel template including rail chips, search box, projected content, and resize separator.
SBOLCanvasFrontend/src/app/side-panel/collapsible-section.component.ts	New presentational accordion section component with search-driven collapse logic.
SBOLCanvasFrontend/src/app/side-panel/collapsible-section.component.scss	Styling for collapsible section headings/body and caret animation.
SBOLCanvasFrontend/src/app/side-panel/collapsible-section.component.html	Collapsible section template keeping bodies in-DOM via [hidden] to preserve drag listeners.
SBOLCanvasFrontend/src/app/side-panel/_caret.scss	Shared caret mixin for panel/section chevrons.
SBOLCanvasFrontend/src/app/home/home.component.ts	Wires palette sections via GlyphPaletteService, adds section auto-expand on search, adjusts canDeactivate typing.
SBOLCanvasFrontend/src/app/home/home.component.html	Replaces mat-sidenav layout with overlay workspace using left/right app-side-panel and CSS vars for widget offsets.
SBOLCanvasFrontend/src/app/home/home.component.css	Defines overlay panel positioning + canvas area container.
SBOLCanvasFrontend/src/app/graph.service.ts	Adds inline rename support on label double-click and overrides mxGraph editing/commit behavior for glyph names.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-palette.service.ts	New service providing sanitized SVG dicts + click routing + util search terms/matching.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-grid.component.ts	New presentational glyph grid component with [hidden] filtering and stable trackBy.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-grid.component.html	New glyph grid template emitting clicks and exposing attrs for drag-source registration.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-grid.component.scss	New glyph grid styling (flex wrap, hidden override, focus/hover).
SBOLCanvasFrontend/src/app/glyph-menu/util-glyph-grid.component.ts	New util section wrapper binding searchPhrase into palette-driven util tiles.
SBOLCanvasFrontend/src/app/glyph-menu/util-glyph-grid.component.html	New util tile markup using palette visibility logic and click routing.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-element-types.ts	Centralizes canonical elementType strings used for drag-source dispatch.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-dragsources.directive.ts	New directive for mxGraph drag-source registration using IntersectionObserver.
SBOLCanvasFrontend/src/app/app.module.ts	Registers new components/directive/service; removes old glyph menu and search pipe.
SBOLCanvasFrontend/src/app/searchfilter.pipe.ts	Removed (no longer needed with new palette).
SBOLCanvasFrontend/src/app/searchfilter.pipe.spec.ts	Removed tests for removed pipe.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-menu.component.ts	Removed legacy Angular Material glyph menu implementation.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-menu.component.html	Removed legacy Angular Material glyph menu template.
SBOLCanvasFrontend/src/app/glyph-menu/glyph-menu.component.css	Removed legacy glyph menu styles.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://blue-flower-0c36fd81e-454.westus2.5.azurestaticapps.net

[travisformayor]

All issues raised by the copilot review resolved in commits 69330e5, 6e717c2, and a73492c.