[MPQEditor] Improve layout

[stamalakhov]

This commit improves UI layout.
This commit improves UI layout.
The draft produces the following UI.

Related: #1541
ONE-vscode-DCO-1.0-Signed-off-by: s.malakhov s.malakhov@partner.samsung.com

[stamalakhov]

Also we could place all model nodes AS IS in the table for editing, without default/specific separation.
I mean:

1. we could populate the table with all models nodes
2. there are a lot of nodes, so in case we have visq data, we can add additional column with accuracy relevance and then sort all nodes by accuracy relevance so that most erroneous nodes are at the top
3. in case latency data is available (e.g. profiler output), we can insert another column latency relevance and then sort all nodes by 'latency relevance` to have the ability for fast elimination of slowest nodes as well as the most erroneous nodes
4. at the bottom of the table we can make summary row, depicting expected 'latency' and accuracy improvements in case MPQ configuration will be applied for quantization

[stamalakhov]

I've changed UI, so now specific layers are contained at scrollable area, so default values are always visible, and also i moved visq controls to the bottom, to make layout more uniform.