UI enhancements (#3217)

* UI enhancements for #3176

- Large overlay now displays fullscreen;

* UI enhancements for #3176

- Adding new ".is-in-small-container" CSS - VERY WIP!
- TODO: fix table implementation;

* UI fixes for NIRVSS client #170

- Hide table header filter inputs when table is in small container;

* UI fixes for NIRVSS client #170

- Fixing legends and plot layout when small, and within a stacked plot;
- Add new `hideLegendWhenSmall` property;
- Remove 'hidden' from plot legend position options;
- Reduced opacity of tabular headers in Espresso theme;
- VERY, VERY WIP right now!

* UI fixes for NIRVSS client #170

- Fixing legends and plot layout when small, and within a stacked plot;
- Cleanups, indention, removed commented CSS;
- Tightened up spacing in plot Y axis;

* UI enhancements for #3176

- Move local controls for plots and imagery, prevent overlapping with
 view large button when in a hidden frame in a layout;
 - Finesse local control styling for increased legibility;
 - Move l-state-indicators to avoid overlap with repositioned local
 controls, finesse styling;

* UI enhancements for #3176

- Tweak large overlay close button for better visual alignment;

* UI enhancements for #3176

- Significant improvements to lines in Display Layouts;
- Increased border-width for lines and boxes;
- Code enhanced for proper handling of horizontal and
vertical lines - but still isn't working properly;
- Renamed box-view.scss to box-and-line-views.scss;
- VERY WIP!

* Fixed incorrect grid array reference

* UI enhancements for #3176

- Fixed final issue with Display Layout line drawing object, thank you
@deeptailor!;

* UI enhancements for #3176

- Contrast enhancements and markup normalization for `c-object-label`
elements in main view, Layout frames, Inspector and overlay;
- Enhanced `l-overlay-large` layout;
- Tightened up margins and spacing in plots;
- Refined `is-paused` styling in Telemetry Tables;
- Now hide Telemetry Tables 'Export Data' button if rows are selected,
which use a separate export button;
- Layout frames now hide button's text labels when small;
- Layout frames spacing tightened up and improved;

* UI enhancements for #3176

- Tweak Snow theme constants;

* UI enhancements for #3176

- Fixed ObjectFrame getOverlayElement method, added a wrapper div
around the viewed object to properly control resulting layout in the
overlay;
- Simplified preview CSS to remove background, border and padding;
- Layout tweaks to add space between scrollbar and thumbs in Imagery
view;
- Removed dev "-info" element in LineView.vue;

* UI enhancements for #3176

- Improved styling for 'edit lock' button;

* UI enhancements for #3176

- Show Display Layout frame "-move" bar on hover, rather than select, to
 make it easier to select items with hidden frames, and only show -move
  bar's drag grippy when that frame is selected;
- `pointer-events: none` applied to table's body and plot's plot areas
when placed in a Layout and being edited, prevents distracting
interactions (plot zoom/pan, table row selection) when selecting and
moving elements in a Layout;
- Refined hover styles for c-button to use $filterHov, simplified and
normalized hover styling;
- Converted a number of old `<a>` tags to `<buttons>` to normalize
styling and use the appropriate control;
- Edit lock button is now colored when locked;

* Fix linting issue

* Minor tweaks

- Tweaked control positioning;

Co-authored-by: Shefali Joshi <simplyrender@gmail.com>

src/plugins/displayLayout/components/LayoutFrame.vue

@@ -25,7 +25,8 @@
     class="l-layout__frame c-frame"
     :class="{
         'no-frame': !item.hasFrame,
-        'u-inspectable': inspectable
+        'u-inspectable': inspectable,
+        'is-in-small-container': size.width < 600 || size.height < 600
     }"
     :style="style"
 >
@@ -61,6 +62,13 @@ export default {
         }
     },
     computed: {
+        size() {
+            let {width, height} = this.item;
+            return {
+                width: (this.gridSize[0] * width),
+                height: (this.gridSize[1] * height)
+            };
+        },
         style() {
             let {x, y, width, height} = this.item;
             return {