Add l10n toml

[Pike]

Pull Request checklist

• [X] This PR includes thorough tests or an explanation of why it does not
• [X] This PR includes a CHANGELOG entry or does not need one
• [X] The UI tests are passing after this PR (./gradlew connectedAmazonWebViewDebugAndroidTest)
• [x] I have considered adding QA labels on the associated issue (not this PR; qa-ready or qa-denied)

Adding an l10n configuration file for echo show, and removing non-localizable strings from strings.xml.

The existing strings trigger a ton of compare-locales errors (which doesn't run in automation yet anyway). That's OK, I expect us to fix this by doing a re-import from po-files into the android l10n repo, and then just land those fixes.

@mcomella, I notice that error_connectionfailure_message and friends are in echo show, but not in tv. Is that something that wasn't obvious when you removed unused strings, or is that an actual difference between the apps?

CC @Delphine

[codecov-io]

Codecov Report

Merging #261 into master will increase coverage by 0.99%. The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #261      +/-   ##
============================================
+ Coverage        35%   35.99%   +0.99%     
- Complexity      371      395      +24     
============================================
  Files           123      125       +2     
  Lines          3240     3273      +33     
  Branches        507      509       +2     
============================================
+ Hits           1134     1178      +44     
+ Misses         2010     1998      -12     
- Partials         96       97       +1

Impacted Files	Coverage Δ	Complexity Δ
.../java/org/mozilla/focus/browser/BrowserFragment.kt	0% <0%> (ø)	0% <0%> (ø)	:arrow_down:
...rg/mozilla/focus/home/NavigationOverlayFragment.kt	0% <0%> (ø)	0% <0%> (ø)	:arrow_down:
...main/java/org/mozilla/focus/ext/FragmentManager.kt	0% <0%> (ø)	0% <0%> (ø)	:arrow_down:
...pp/src/main/java/org/mozilla/focus/MainActivity.kt	0% <0%> (ø)	0% <0%> (ø)	:arrow_down:
...rg/mozilla/focus/session/SessionRestorerStorage.kt	100% <0%> (ø)	7% <0%> (?)
.../java/org/mozilla/focus/session/SessionRestorer.kt	93.33% <0%> (ø)	8% <0%> (?)
...lla/focus/session/VisibilityLifeCycleCallback.java	29.16% <0%> (+4.16%)	4% <0%> (+1%)	:arrow_up:
...rc/main/java/org/mozilla/focus/ScreenController.kt	5.12% <0%> (+5.12%)	2% <0%> (+2%)	:arrow_up:
...a/org/mozilla/focus/MainActivityIntentResponder.kt	100% <0%> (+10%)	9% <0%> (+2%)	:arrow_up:
...main/java/org/mozilla/focus/utils/LiveDataEvent.kt	100% <0%> (+100%)	1% <0%> (+1%)	:arrow_up:
... and 1 more

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[mcomella]

@mcomella, I notice that error_connectionfailure_message and friends are in echo show, but not in tv. Is that something that wasn't obvious when you removed unused strings, or is that an actual difference between the apps?

FFTV uses components to display its error pages (which has the strings) and we haven't gotten around to that yet: likely fixed in #100.

[Pike]

Does it make sense to block on that? Or should we go ahead with the status quo for now?

[mcomella]

Does it make sense to block on that? Or should we go ahead with the status quo for now?

@Pike Why do you think we would want to block? I don't see any reasons to do so.

[Pike]

@mcomella this is good for another round of review and hopefully landing.