Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/961a51642f7b
Author: Rex KM Lee <rexboy@mozilla.com>
Desc: Merge pull request #27587 from rexboy7/1105981-rename-2

Bug 1115290: Resolve focus issues for app modal dialogs (alert, prompt, and confirm)
Bug 1105981: Rename card feature for home screen. r=johuhu, f=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/93ae9a2ce0b7
Author: Rex Lee <rexboy@mozilla.com>
Desc: Bug 1105981 - [Stingray][Home] Rename card

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https://hg.mozilla.org/integration/gaia-central/rev/23abe0a6ad59
Author: Rex Lee <rexboy@mozilla.com>
Desc: Bug 1115290 - [Stingray][System] Focus app modal dialogs (alert, prompt, confirm) correctly

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https://hg.mozilla.org/integration/gaia-central/rev/3519998a6f82
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #27734 from gasolin/issue-1118391

Bug 1118391 - [RTL][Settings] Dialogs are aligned by language, r=ejchen

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https://hg.mozilla.org/integration/gaia-central/rev/3bb20a6a265e
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1118391 - [RTL][Settings] Dialogs are left-aligned

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "d8ce5f3c9f7c67a8852e5750badcfd29d228d6e2", 
+        "git_revision": "878333528b1427d69abe75fe36cab0e96b8a266c", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "2a1708be29a63c2018cd34a063cb841bbea887cb", 
+    "revision": "961a51642f7bcfb32f6135ca3deabaccfa0d0c3a", 
     "repo_path": "integration/gaia-central"
 }