Review and integrate UI enhancements (#2078)

* [Frontend] WIP New local-controls classes

Fixes #2000
- h-local-controls
- Markup in plots changed
- Changed reset plot button's icon

* [Frontend] WIP local-controls classes

Fixes #2000
- Refactoring to use and apply local-control classes consistently;
- Plots and imagery done in main view and Display Layout contexts;

* [Frontend] WIP local-controls classes

Fixes #2000
- Use local-control classes in Timelines;
- Group Timeline buttons in l-btn-set;
- Use reset icon glyph;

* [Frontend] WIP local-controls classes

Fixes #2000
- Slight increase in size to buttons in frame context;

* [Frontend] local-controls classes

Fixes #2000
- Code cleanup;
- Update Style Guide content;
- Provisionally done, needs unit testing and double-checking;

* [Frontend] Better selecting in browse mode

Fixes #2000
- Better colors and approach to selecting in browse mode;

* [Frontend] Tweaks to pane collapse mini-tabs

Fixes #1758
Fixes #2000
- Enlarged mini-tabs and moved to screen top;
- Removed duplicative theme-based constants;

* [Frontend] Tweaks to "nav up" arrow button

Fixes #1758
Fixes #2000
- Increased hit area of .l-back "nav up" arrow in object-browse-bar;

* [Frontend] Glyph improvements

Fixes #1758
Fixes #2000
- New arrow glyph for view controls;
- Increased hit area of view controls in tree for mobile and desktop;
- Better "hamburger" menu glyph;

* [Frontend] Inspector refactor to CSS grid WIP

Fixes #1758
Fixes #2000
- WIP!!!;
- Good progress on Properties section;

* [Frontend] Inspector refactor to CSS grid WIP

Fixes #2000
- Significant mods to CSS and markup;
- New grid archetypes classes;
- Added title attribs to plot options edit and browse props;
- Added value, alarm markers to plot series browse props;
- Nearly done (?) but needs unit testing and cleanups;

* [Frontend] Minor tweaks to form and form-row

Fixes #2000
- Fixing margin problem with .form-row;
- h2 instead of div.section-header;

* [Frontend] Fixed H2 in Elements pool

Fixes #2000

* Refinements to Time Conductor

Fixes #2000
- Tweaks size of fixed position grab ticks;
- Positioning refinements to ticks and text;
- Hide major tick marks;

* Hide View Large button for nested hidden-frame Layouts

Fixes #2000
- When a layout is nested and has its frame hidden, hide the
View Large button;

* Better hiding of Time Conductor "Submit" button

Fixes #2000

* Re-added new icon-arrow-right-equilateral glyph;

Fixes #2000
Fixes #2078

* Remove commented styles/markup

Fixes #2000
Fixes #2078

* Repaired approach to hiding Time Conductor Submit button

Fixes #2000
Fixes #2078
- Renamed .off to .invisible and added refinements;

* Fixed wrong conflict resolutions; polish search

Fixes #2000
Fixes #2078
- .invisible instead of .off in search.html;
- Minor polishing to search;

fixes #1758
fixes #1763 
fixes #2011

platform/commonUI/themes/snow/res/sass/_constants.scss

@@ -72,8 +72,8 @@ $colorObjHdrTxt: $colorBodyFg;
 $colorObjHdrIc: lighten($colorObjHdrTxt, 30%);
 $colorTick: rgba(black, 0.2);
 $colorSelectableSelectedPrimary: $colorKey;
-$colorSelectableSelectedSecondary: pushBack($colorSelectableSelectedPrimary, 20%);
-$colorSelectableHov: $colorSelectableSelectedSecondary;
+//$colorSelectableSelectedSecondary: pushBack($colorSelectableSelectedPrimary, 20%);
+$colorSelectableHov: rgba($colorBodyFg, 0.4);
 
 // Menu colors
 $colorMenuBg: pushBack($colorBodyBg, 10%);
@@ -226,8 +226,6 @@ $colorSplitterHover: pullForward($colorSplitterBg, $hoverRatioPercent * 2);
 $colorSplitterActive: $colorKey;
 
 // Minitabs
-$uePaneMiniTabH: 24px;
-$uePaneMiniTabW: 8px;
 $colorMiniTabBg: $colorSplitterBg;
 $colorMiniTabFg: pullForward($colorMiniTabBg, 30%);
 $colorMiniTabBgHov: $colorSplitterHover;