[fix] format metrics keys appropriately

[VkoHov]

1. Encode metric key by name and context
2. Added logic for creating valid queries if there are double quotes inside the metric name
3. Create getLabelAndValueOfMetrics method and replace it everywhere
4. Fix sorting from the table middle panel columns
5. Fix export table keys converting
6. Adjust getFilteredRow method

[VkoHov]

Resolves #2005