Cleanup some small UI bugaboos (padding, etc)

[snipe]

Just some small tweaks to padding, and some regressions (that the cancel button is too close to the submit, which can end in tears from a UX perspective) and also the top save button on really small forms. I also added some padding to the top of the forms so that it doesn't feel quite so cramped, and we now (once again) respect the $topSubmit variable.

For example, in the categories edit form, we start with this:

@extends('layouts/edit-form', [
    'createText' => trans('admin/categories/general.create') ,
    'updateText' => trans('admin/categories/general.update'),
    'helpPosition'  => 'right',
    'helpText' => trans('help.categories'),
    'formAction' => (isset($item->id)) ? route('categories.update', ['category' => $item->id]) : route('categories.store'),
])

If we wanted a top submit button there (which we would only do if the form is longer, and it looks weird if we have a very small form - manufacturers, for example - we can just add in this line into the edit blade:

    'topSubmit'  => 'true',

So it would look like:

@extends('layouts/edit-form', [
    'createText' => trans('admin/categories/general.create') ,
    'updateText' => trans('admin/categories/general.update'),
    'helpPosition'  => 'right',
    'helpText' => trans('help.categories'),
    'topSubmit'  => 'true',
    'formAction' => (isset($item->id)) ? route('categories.update', ['category' => $item->id]) : route('categories.store'),
])

Before

After

[what-the-diff]

• The submit button is now on the left side of the screen.
• There are no longer two buttons for saving and cancelling, there's only one save button at the bottom right corner of each page (except in cases where a topSubmit variable is set to true).
• In those cases where a topSubmit variable is set to true, we have an additional save button at the top right corner as well as some text that says ";". This was done because it looks like this code was originally intended to be used with another form element but then someone decided not to use it so they just commented out all references except for this line which still has its semicolon showing up next to what I assume should be something else if you uncommented everything else again...