fix(left-click): fix selecting elements on diagram when layer tab is opened

Closes MIN-157

See merge request !440

fix(layer-line): add arrow highlighting after line selection

Closes MIN-156

See merge request !433

fix(label): hide label when font size below cut-off font size

Closes MIN-159

See merge request !432

fix(complex-text): set correct units for font to calculate fontSize

Closes MIN-158

See merge request !431

fix(background-switch): change order of background types in MapBackgroundSwitch

Closes MIN-160

See merge request !430

fix(comments-layer): avoid layers reloading by creating a vectorSource at startup

Closes MIN-162

See merge request !429

feat(element-glyph): Add premission to edit glyph of an element

Closes MIN-155

See merge request !426

bugfix(text): add TEXT_CUTOFF_FONTSIZE constant

Closes MIN-153

See merge request !423

feat(element-glyph): Add functionality to change glyph of a model element

Closes MIN-155

See merge request !425

feat(layer-line): add arrow scaling

Closes MIN-154

See merge request !424

bugfix(text): set correct text coords

Closes MIN-152

See merge request !422

feat(sbgn-view): change and operator visualization in sbgn view

Closes MIN-150

See merge request !417

feat(sbgn-view): add info box about element activity

Closes MIN-149

See merge request !416

Merge branch 'feat/MIN-149-sbgn-view-Ion-Channel' of https://gitlab.lcsb.uni.lu/minerva/frontend into feat/MIN-150-sbgn-view-and-operator

feat(multimer): change visualization of elements with homodimer > 1

Closes MIN-148

See merge request !415

bugfix(overlays): change background color of elements when overlaysVisible

Closes MIN-151

See merge request !418

Resolve MIN-95 "Feat/ edit layerline"

Closes MIN-95

See merge request !414

Resolve MIN-94 "Feat/ adding layer line"

Closes MIN-94

See merge request !413