Resolve "New search demo"

Closes #311

See merge request !241

Resolve "Select descriptors in dataset registration"

Closes #301

See merge request !240

Resolve "Consecutive snackbars"

Closes #305

See merge request !239

Resolve "Contributor roles"

Closes #277

See merge request !237

- i18n
- New codes

Resolve "Dataset details"

Closes #302

See merge request !236

- Removed left navigation
- Replaced Summary with PropertiesItems

Resolve "After Apply or reset filters, page does not scroll up."

Closes #271

See merge request !235

Resolve "Filter shortname"

Closes #299

See merge request !234

Resolve "Loading shared data"

Closes #294

See merge request !233

Resolve "i18n"

Closes #295

See merge request !231

Resolve "Dataset details navigation"

Closes #296

See merge request !230

- Entry page
- Namespace common (for labels and buttons)
- Namespace translations (for "content")

Resolve "RTL languages"

Closes #293

See merge request !229

Resolve "Cache headers"

Closes #292

See merge request !227

Resolve "i18n demo"

Closes #288

See merge request !228

- Don't load .missing.json
- Testing translations
- Removed l10n files
- i18n tools: npm run i18nscan # updates the EN resource files from src/
- Declare locales using RTL

Resolve "Permissions in Dashboard"

Closes #290

See merge request !226

- Removed getClassname() method -- can't use instance methods with SSR state

Resolve "UX/UI for Descriptors and Descriptor Lists"

Closes #278

See merge request !225

Resolve "Implement entry page UI"

Closes #287

See merge request !224