Showcase App alterations

There is a requirement to add information about the fields etc. that are available in the showcase app:

1. The information should be succinct, descriptive but not contain any coding information or any detail beyond a brief usage description for each item.
2. For further information the user needs to look to official documentation. For this reason there needs to be a link to official documentation from within Magnolia CMS 5.

Currently there are three tabs in the showcase app:

1. Form fields - Magnolia specific fields. 
2. Vaadin fields - Vaadin fields that can be used with Magnolia.
3. Unsupported fields - Not clear why we specify what Vaadin fields NOT to use. Suggest adding information on what is wrong with each field (i.e. - why it should not be used). That or simply removing this tab.

All three tabs require changes.

General suggestion valid for all three tabs is to add a link to official documentation, where users can find detailed information on using fields. The link could be by the line "Showcase apps......." (Same link for ALL tabs; it appears above tabs.)

Form fields tab changes

Suggest making a few alterations to the Showcase App: Form fields tab:

1. Increase real estate for the fields (i.e make the grey area bigger - stretch it to the left and right).
2. Left align all fields in each column.
3. Add three columns:
   
   1. Field name
   2. Appearance
   3. Function (or Description)
4. Consider adding visible lines as column indicators (i.e grey vertical lines)
5. Add a short usage description per field. Say, max 140 characters. (Use this for... Can also be used for... etc.) Where, why, how. (Use on x pages to describe....Try not to use more than x times per page.)
6. Add link to official documentation, where users can find detailed information on using fields. The link could be by the line "Showcase apps......."

Vaadin fields tab changes

Suggest making a few alterations to the Showcase App: Vaadin fields tab:

1. Increase real estate for the fields (i.e make the grey area bigger - stretch it to the left and right).
2. Add three columns:
   
   1. Field name
   2. Appearance - show the field
   3. Function (or Description) - description
3. Left align everything in each column. 
4. For the Field names:
   
   1. Use sentence case for headings (First word capitalized only.) At present there we 'Magnolia icons' but 'Progress Indicator'. 'Progress indicator' is good.
   2. Perhaps BOLD the highest level of heading (the category - for example Magnolia icons) not secondary headings. 
   3. Label each item, field individuallly, either as independent things or as members of a category.
   4. Name each field individually and separately. Currently there is 'Magnolia table and tree table'. This should be:
   • Magnolia table
   • Tree table
5. Consider adding visible lines (grey) as column indicators.
6. Add a short description per field (see 6c,. Say, max 140 characters. (Use this for... Can also be used for... etc.) Where, why, how. (Use on x pages to describe....Try not to use more than x times per page.)