Refactored browser mode and runmode configs.

[iamcharankumar]

• Use variables instead of runtime properties directly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files with missing lines	Coverage Δ	Complexity Δ
...glabs/portal/qa/browsermanager/BrowserManager.java	100.00% <100.00%> (ø)	3.00 <1.00> (ø)
...ava/io/swaglabs/portal/qa/commons/WebBasePage.java	83.33% <ø> (-0.67%)	10.00 <0.00> (ø)
...aglabs/portal/qa/constants/WebPortalConstants.java	100.00% <100.00%> (ø)	1.00 <0.00> (ø)

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